TY - JOUR A1 - Goethe, Katrin A1 - Esser, Günter A1 - Gendt, Anja A1 - Kliegl, Reinhold T1 - Working memory in children tracing age differences and special educational needs to parameters of a formal model JF - Developmental psychology N2 - Parameters of a formal working-memory model were estimated for verbal and spatial memory updating of children. The model proposes interference though feature overwriting and through confusion of whole elements as the primary cause of working-memory capacity limits. We tested 2 age groups each containing 1 group of normal intelligence and I deficit group. For young children the deficit was developmental dyslexia; for older children it was a general learning difficulty. The interference model predicts less interference through overwriting but more through confusion of whole elements for the dyslexic children than for their age-matched controls. Older children exhibited less interference through confusion of whole elements and a higher processing rate than young children, but general learning difficulty was associated with slower processing than in the age-matched control group. Furthermore, the difference between verbal and spatial updating mapped onto several meaningful dissociations of model parameters. KW - working-memory capacity KW - interference model KW - dyslexia KW - general learning difficulty Y1 - 2012 U6 - https://doi.org/10.1037/a0025660 SN - 0012-1649 VL - 48 IS - 2 SP - 459 EP - 476 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Göthe, Katrin A1 - Esser, Günter A1 - Gendt, Anja A1 - Kliegl, Reinhold T1 - Working memory in children : tracing age differences and special educational needs to parameters of a formal model N2 - Parameters of a formal working-memory model were estimated for verbal and spatial memory updating of children. The model proposes interference though feature overwriting and through confusion of whole elements as the primary cause of working-memory capacity limits. We tested 2 age groups each containing 1 group of normal intelligence and 1 deficit group. For young children the deficit was developmental dyslexia; for older children it was a general learning difficulty. The interference model predicts less interference through overwriting but more through confusion of whole elements for the dyslexic children than for their age-matched controls. Older children exhibited less interference through confusion of whole elements and a higher processing rate than young children, but general learning difficulty was associated with slower processing than in the age-matched control group. Furthermore, the difference between verbal and spatial updating mapped onto several meaningful dissociations of model parameters. Y1 - 2012 ER - TY - JOUR A1 - Nicenboim, Bruno A1 - Vasishth, Shravan A1 - Gattei, Carolina A1 - Sigman, Mariano A1 - Kliegl, Reinhold T1 - Working memory differences in long-distance dependency resolution JF - Frontiers in psychology N2 - There is a wealth of evidence showing that increasing the distance between an argument and its head leads to more processing effort, namely, locality effects: these are usually associated with constraints in working memory (DLT: Gibson, 2000: activation-based model: Lewis and Vasishth, 2005). In SOV languages, however, the opposite effect has been found: antilocality (see discussion in Levy et al., 2013). Antilocality effects can be explained by the expectation based approach as proposed by Levy (2008) or by the activation-based model of sentence processing as proposed by Lewis and Vasishth (2005). We report an eye-tracking and a self-paced reading study with sentences in Spanish together with measures of individual differences to examine the distinction between expectation- and memory based accounts, and within memory-based accounts the further distinction between DLT and the activation-based model. The experiments show that (i) antilocality effects as predicted by the expectation account appear only for high-capacity readers; (ii) increasing dependency length by interposing material that modifies the head of the dependency (the verb) produces stronger facilitation than increasing dependency length with material that does not modify the head; this is in agreement with the activation-based model but not with the expectation account; and (iii) a possible outcome of memory load on low-capacity readers is the increase in regressive saccades (locality effects as predicted by memory-based accounts) or, surprisingly, a speedup in the self-paced reading task; the latter consistent with good-enough parsing (Ferreira et al., 2002). In sum, the study suggests that individual differences in working memory capacity play a role in dependency resolution, and that some of the aspects of dependency resolution can be best explained with the activation-based model together with a prediction component. KW - locality KW - antilocality KW - working memory capacity KW - individual differences KW - Spanish KW - activation KW - DLT KW - expectation Y1 - 2015 U6 - https://doi.org/10.3389/fpsyg.2015.00312 SN - 1664-1078 VL - 6 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Nicenboim, Bruno A1 - Vasishth, Shravan A1 - Gattei, Carolina A1 - Sigman, Mariano A1 - Kliegl, Reinhold T1 - Working memory differences in long-distance dependency resolution JF - Frontiers in psychology N2 - There is a wealth of evidence showing that increasing the distance between an argument and its head leads to more processing effort, namely, locality effects; these are usually associated with constraints in working memory (DLT: Gibson, 2000; activation-based model: Lewis and Vasishth, 2005). In SOV languages, however, the opposite effect has been found: antilocality (see discussion in Levy et al., 2013). Antilocality effects can be explained by the expectation-based approach as proposed by Levy (2008) or by the activation-based model of sentence processing as proposed by Lewis and Vasishth (2005). We report an eye-tracking and a self-paced reading study with sentences in Spanish together with measures of individual differences to examine the distinction between expectation- and memory-based accounts, and within memory-based accounts the further distinction between DLT and the activation-based model. The experiments show that (i) antilocality effects as predicted by the expectation account appear only for high-capacity readers; (ii) increasing dependency length by interposing material that modifies the head of the dependency (the verb) produces stronger facilitation than increasing dependency length with material that does not modify the head; this is in agreement with the activation-based model but not with the expectation account; and (iii) a possible outcome of memory load on low-capacity readers is the increase in regressive saccades (locality effects as predicted by memory-based accounts) or, surprisingly, a speedup in the self-paced reading task; the latter consistent with good-enough parsing (Ferreira et al., 2002). In sum, the study suggests that individual differences in working memory capacity play a role in dependency resolution, and that some of the aspects of dependency resolution can be best explained with the activation-based model together with a prediction component. KW - locality KW - antilocality KW - working memory capacity KW - individual differences KW - Spanish KW - activation KW - DLT KW - expectation Y1 - 2015 U6 - https://doi.org/10.3389/fpsyg.2015.00312 SN - 1664-1078 VL - 6 IS - 312 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Rodriguez-Villagra, Odir Antonio A1 - Göthe, Katrin A1 - Oberauer, Klaus A1 - Kliegl, Reinhold T1 - Working memory capacity in a go/no-go task - age differences in interference, processing speed, and attentional control JF - Developmental psychology N2 - We tested the limits of working-memory capacity (WMC) of young adults, old adults, and children with a memory-updating task. The task consisted of mentally shifting spatial positions within a grid according to arrows, their color signaling either only go (control) or go/no-go conditions. The interference model (IM) of Oberauer and Kliegl (2006) was simultaneously fitted to the data of all groups. In addition to the 3 main model parameters (feature overlap, noise, and processing rate), we estimated the time for switching between go and no-go steps as a new model parameter. In this study, we examined the IM parameters across the life span. The IM parameter estimates show that (a) conditions were not different in interference by feature overlap and interference by confusion; (b) switching costs time; (c) young adults and children were less susceptible than old adults to interference due to feature overlap; (d) noise was highest for children, followed by old and young adults; (e) old adults differed from children and young adults in lower processing rate; and (f) children and old adults had a larger switch cost between go steps and no-go steps. Thus, the results of this study indicated that across age, the IM parameters contribute distinctively for explaining the limits of WMC. KW - working memory capacity KW - interference model KW - inhibition KW - children KW - old adults and young adults Y1 - 2013 U6 - https://doi.org/10.1037/a0030883 SN - 0012-1649 VL - 49 IS - 9 SP - 1683 EP - 1696 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Zhou, Wei A1 - Wang, Aiping A1 - Shu, Hua A1 - Kliegl, Reinhold A1 - Yan, Ming T1 - Word segmentation by alternating colors facilitates eye guidance in Chinese reading JF - Memory & cognition N2 - During sentence reading, low spatial frequency information afforded by spaces between words is the primary factor for eye guidance in spaced writing systems, whereas saccade generation for unspaced writing systems is less clear and under debate. In the present study, we investigated whether word-boundary information, provided by alternating colors (consistent or inconsistent with word-boundary information) influences saccade-target selection in Chinese. In Experiment 1, as compared to a baseline (i.e., uniform color) condition, word segmentation with alternating color shifted fixation location towards the center of words. In contrast, incorrect word segmentation shifted fixation location towards the beginning of words. In Experiment 2, we used a gaze-contingent paradigm to restrict the color manipulation only to the upcoming parafoveal words and replicated the results, including fixation location effects, as observed in Experiment 1. These results indicate that Chinese readers are capable of making use of parafoveal word-boundary knowledge for saccade generation, even if such information is unfamiliar to them. The present study provides novel support for the hypothesis that word segmentation is involved in the decision about where to fixate next during Chinese reading. KW - Chinese KW - Word segmentation KW - Fixation location KW - Parafoveal KW - Color Y1 - 2018 U6 - https://doi.org/10.3758/s13421-018-0797-5 SN - 0090-502X SN - 1532-5946 VL - 46 IS - 5 SP - 729 EP - 740 PB - Springer CY - New York ER - TY - JOUR A1 - Hörnig, Robin A1 - Weskott, Thomas A1 - Kliegl, Reinhold A1 - Fanselow, Gisbert T1 - Word order variation in spatial descriptions with adverbs N2 - Previous research has shown that in a three-term spatial reasoning task, the second premise of a German premise pair is especially easy to comprehend if (1) the prepositional object rather than the grammatical subject denotes the given entity, and if (2) the term denoting the given entity precedes the term denoting the new entity. Accordingly, the second premise is easiest to comprehend with noncanonical word order-that is, with the prepositional object in preverbal position denoting the given entity (e.g., To the right of the given object is the new subject). This finding is explained in terms of contextual licensing of noncanonical word order. Here, we discuss and tested two alternative accounts of contextual licensing, given-new and partially ordered set relations (Poset). The given-new account claims that noncanonical word order is licensed by the term denoting the given entity preceding the term denoting the new entity. On the Poset account, noncanonical word order is licensed if the preverbal constituent introduces a new entity that stands in a transitive, irreflexive, and asymmetric relation to a given entity. Comprehension times for second premises with spatial adverbs in four different word orders support both accounts of contextual licensing; Poset licensing was stronger than given-new licensing. Y1 - 2006 UR - http://www.springerlink.com/content/0090-502x/ U6 - https://doi.org/10.3758/BF03193264 SN - 0090-502X ER - TY - JOUR A1 - Laubrock, Jochen A1 - Kliegl, Reinhold A1 - Rolfs, Martin A1 - Engbert, Ralf T1 - When do microsaccades follow spatial attention? N2 - Following up on an exchange about the relation between microsaccades and spatial attention (Horowitz, Fencsik, Fine, Yurgenson, & Wolfe, 2007; Horowitz, Fine, Fencsik, Yurgenson, & Wolfe, 2007; Laubrock, Engbert, Rolfs, & Kliegl, 2007), we examine the effects of selection criteria and response modality. We show that for Posner cuing with saccadic responses, microsaccades go with attention in at least 75% of cases (almost 90% if probability matching is assumed) when they are first (or only) microsaccades in the cue target interval and when they occur between 200 and 400 msec after the cue. The relation between spatial attention and the direction of microsaccades drops to chance level for unselected microsaccades collected during manual-response conditions. Analyses of data from four cross-modal cuing experiments demonstrate an above-chance, intermediate link for visual cues, but no systematic relation for auditory cues. Thus, the link between spatial attention and direction of microsaccades depends on the experimental condition and time of occurrence, but it can be very strong. Y1 - 2010 UR - http://app.psychonomic-journals.org/ U6 - https://doi.org/10.3758/APP.72.3.683 SN - 1943-3921 ER - TY - JOUR A1 - Thiel, Marco A1 - Romano, Maria Carmen A1 - Kurths, Jürgen A1 - Rolfs, Martin A1 - Kliegl, Reinhold T1 - Twin surrogates to test for complex synchronisation N2 - We present an approach to generate (multivariate) twin surrogates (TS) based on recurrence properties. This technique generates surrogates which correspond to an independent copy of the underlying system, i.e. they induce a trajectory of the underlying system starting at different initial conditions. We show that these surrogates are well suited to test for complex synchronisation and exemplify this for the paradigmatic system of Rossler oscillators. The proposed test enables to assess the statistical relevance of a synchronisation analysis from passive experiments which are typical in natural systems Y1 - 2006 UR - http://www.mendeley.com/research/twin-surrogates-to-test-for-complex-synchronisation/#page-1 U6 - https://doi.org/10.1209/epl/i2006-10147-0 ER - TY - JOUR A1 - Dimigen, Olaf A1 - Kliegl, Reinhold A1 - Sommer, Werner T1 - Trans-saccadic parafoveal preview benefits in fluent reading: A study with fixation-related brain potentials JF - NeuroImage : a journal of brain function N2 - During natural reading, a parafoveal preview of the upcoming word facilitates its subsequent recognition (e.g., shorter fixation durations compared to masked preview) but nothing is known about the neural correlates of this so-called preview benefit. Furthermore, while the evidence is strong that readers preprocess orthographic features of upcoming words, it is controversial whether word meaning can also be accessed parafoveally. We investigated the timing, scope, and electrophysiological correlates of parafoveal information use in reading by simultaneously recording eye movements and fixation-related brain potentials (FRPs) while participants read word lists fluently from left to right. For one word the target (e.g., "blade") parafoveal information was manipulated by showing an identical ("blade"), semantically related ("knife"), or unrelated ("sugar") word as preview. In boundary trials, the preview was shown parafoveally but changed to the correct target word during the incoming saccade. Replicating classic findings, target words were fixated shorter after identical previews. In the EEG, this benefit was reflected in an occipitotemporal preview positivity between 200 and 280 ms. In contrast, there was no facilitation from related previews. In parafoveal-on-foveal trials, preview and target were embedded at neighboring list positions without a display change. Consecutive fixation of two related words produced N400 priming effects, but only shortly (160 ms) after the second word was directly fixated. Results demonstrate that neural responses to words are substantially altered by parafoveal preprocessing under normal reading conditions. We found no evidence that word meaning contributes to these effects. Saccade-contingent display manipulations can be combined with EEG recordings to study extrafoveal perception in vision. KW - EEG KW - Eye tracking KW - Active vision KW - Eye-fixation-related potentials (EFRP) KW - Parafoveal vision KW - Boundary technique Y1 - 2012 U6 - https://doi.org/10.1016/j.neuroimage.2012.04.006 SN - 1053-8119 SN - 1095-9572 VL - 62 IS - 1 SP - 381 EP - 393 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Nuthmann, Antje A1 - Engbert, Ralf T1 - Tracking the mind during reading : the influence of past, present, and future words on fixation durations N2 - Reading requires the orchestration of visual, attentional, language-related, and oculomotor processing constraints. This study replicates previous effects of frequency, predictability, and length of fixated words on fixation durations in natural reading and demonstrates new effects of these variables related to previous and next words. Results are based on fixation durations recorded from 222 persons, each reading 144 sentences. Such evidence for distributed processing of words across fixation durations challenges psycholinguistic immediacy-of-processing and eye- mind assumptions. Most of the time the mind processes several words in parallel at different perceptual and cognitive levels. Eye movements can help to unravel these processes Y1 - 2006 UR - http://psycnet.apa.org/index.cfm?fa=browsePA.volumes&jcode=xge&vol=135&issue=1 U6 - https://doi.org/10.1037/0096-3445.135.1.12 SN - 0096-3445 ER - TY - JOUR A1 - Kliegl, Reinhold T1 - Towards a perceptual-span theory of distributed processing in reading : a reply to Rayner, Pollatsek, Drieghe, Slattery, and Reichle Y1 - 2007 ER - TY - JOUR A1 - Rolfs, Martin A1 - Kliegl, Reinhold A1 - Engbert, Ralf T1 - Toward a model of microsaccade generation : the case of microsaccadic inhibition Y1 - 2008 UR - http://www.journalofvision.org/content/by/year U6 - https://doi.org/10.1167/8.11.5 SN - 1534-7362 ER - TY - JOUR A1 - Mayr, Ulrich A1 - Kliegl, Reinhold A1 - Krampe, Ralf-Thomas T1 - Timing, sequencing and executive control in repetitive movement production N2 - The authors demonstrate that the timing and sequencing of target durations require low-level timing and executive control. Sixteen young (M-age = 19 years) and 16 older (M-age = 70 years) adults participated in 2 experiments. In Experiment 1, individual mean-variance functions for low-level timing (isochronous tapping) and the sequencing of multiple targets (rhythm production) revealed (a) a dissociation of low-level timing and sequencing in both age groups, (b) negligible age differences for low-level timing, and (c) large age differences for sequencing. Experiment 2 supported the distinction between low-level timing and executive functions: Selection against a dominant rhythm and switching between rhythms impaired performances in both age groups and induced pronounced perseveration of the dominant pattern in older adults. Y1 - 2005 SN - 0096-1523 ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Mayr, Ulrich A1 - Krampe, Ralf-Thomas T1 - Time-accuracy functions for the determination of person and process differences : an application to cognitive aging Y1 - 1994 ER - TY - JOUR A1 - Schlesewsky, Matthias A1 - Fanselow, Gisbert A1 - Kliegl, Reinhold A1 - Krems, J. T1 - The subject preference in the processing of locally ambiguous Wh-questions in german Y1 - 2000 SN - 0-7923-6104- 0 ER - TY - JOUR A1 - Volbrecht, V. A1 - Kliegl, Reinhold T1 - The perception of blackness : an historical and contemporary review Y1 - 1998 SN - 3-11-015431-5 ER - TY - JOUR A1 - Nuthmann, Antje A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - The IOVP-effect in mindless reading : Experiment and modeling N2 - Fixation durations in reading are longer for within-word fixation positions close to word center than for positions near word boundaries. This counterintuitive result was termed the Inverted-Optimal Viewing Position (IOVP) effect. We proposed an explanation of the effect based on error-correction of mislocated fixations [Nuthmann, A., Engbert, R., & Kliegl, R. (2005). Mislocated fixations during reading and the inverted optimal viewing position effect. Vision Research, 45, 2201-2217], that suggests that the IOVP effect is not related to word processing. Here we demonstrate the existence of an IOVP effect in "mindless reading", a G-string scanning task. We compare the results from experimental data with results obtained from computer simulations of a simple model of the IOVP effect and discuss alternative accounts. We conclude that oculornotor errors, which often induce mislocalized fixations, represent the most important source of the IOVP effect. (c) 2006 Elsevier Ltd. All rights reserved. Y1 - 2007 U6 - https://doi.org/10.1016/j.visres.2006.11.005 ER - TY - JOUR A1 - Ohl, Sven A1 - Brandt, Stephan A. A1 - Kliegl, Reinhold T1 - The generation of secondary saccades without postsaccadic visual feedback JF - Journal of vision N2 - Primary saccades are often followed by small secondary saccades, which are generally thought to reduce the distance between the saccade endpoint and target location. Accumulated evidence demonstrates that secondary saccades are subject to various influences, among which retinal feedback during postsaccadic fixation constitutes only one important signal. Recently, we reported that target eccentricity and an orientation bias influence the generation of secondary saccades. In the present study, we examine secondary saccades in the absence of postsaccadic visual feedback. Although extraretinal signals (e.g., efference copy) have received widespread attention in eye-movement studies, it is still unclear whether an extraretinal error signal contributes to the programming of secondary saccades. We have observed that secondary saccade latency and amplitude depend on primary saccade error despite the absence of postsaccadic visual feedback. Strong evidence for an extraretinal error signal influencing secondary saccade programming is given by the observation that secondary saccades are more likely to be oriented in a direction opposite to the primary saccade as primary saccade error shifts from target undershoot to overshoot. We further show how the functional relationship between primary saccade landing position and secondary saccade characteristics varies as a function of target eccentricity. We propose that initial target eccentricity and an extraretinal error signal codetermine the postsaccadic activity distribution in the saccadic motor map when no visual feedback is available. KW - monocular deprivation KW - binocular combination KW - sensory balance Y1 - 2013 U6 - https://doi.org/10.1167/13.5.11 SN - 1534-7362 VL - 13 IS - 5 PB - Association for Research in Vision and Opthalmology CY - Rockville ER - TY - JOUR A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - The game of word skipping : who are the competitors? N2 - Computational models such as E-Z Reader and SWIFT are ideal theoretical tools to test quantitatively our current understanding of eye-movement control in reading. Here we present a mathematical analysis of word skipping in the E-Z Reader model by semianalytic methods, to highlight the differences in current modeling approaches. In E-Z Reader, the word identification system must outperform the oculomotor system to induce word skipping. In SWIFT, there is competition among words to be selected as a saccade target. We conclude that it is the question of competitors in the "game" of word skipping that must be solved in eye movement research Y1 - 2003 ER - TY - JOUR A1 - Krampe, Ralf-Thomas A1 - Kliegl, Reinhold A1 - Mayr, Ulrich A1 - Engbert, Ralf A1 - Vorberg, D. T1 - The fast and the slow of skilled bimanual rhythm production : parallel versus integrated timing Y1 - 2000 ER - TY - JOUR A1 - Laubrock, Jochen A1 - Kliegl, Reinhold T1 - The eye-voice span during reading aloud JF - Frontiers in psychology N2 - Although eye movements during reading are modulated by cognitive processing demands, they also reflect visual sampling of the input, and possibly preparation of output for speech or the inner voice. By simultaneously recording eye movements and the voice during reading aloud, we obtained an output measure that constrains the length of time spent on cognitive processing. Here we investigate the dynamics of the eye-voice span (EVS), the distance between eye and voice. We show that the EVS is regulated immediately during fixation of a word by either increasing fixation duration or programming a regressive eye movement against the reading direction. EVS size at the beginning of a fixation was positively correlated with the likelihood of regressions and refixations. Regression probability was further increased if the EVS was still large at the end of a fixation: if adjustment of fixation duration did not sufficiently reduce the EVS during a fixation, then a regression rather than a refixation followed with high probability. We further show that the EVS can help understand cognitive influences on fixation duration during reading: in mixed model analyses, the EVS was a stronger predictor of fixation durations than either word frequency or word length. The EVS modulated the influence of several other predictors on single fixation durations (SFDs). For example, word-N frequency effects were larger with a large EVS, especially when word N-1 frequency was low. Finally, a comparison of SFDs during oral and silent reading showed that reading is governed by similar principles in both reading modes, although EVS maintenance and articulatory processing also cause some differences. In summary, the EVS is regulated by adjusting fixation duration and/or by programming a regressive eye movement when the EVS gets too large. Overall, the EVS appears to be directly related to updating of the working memory buffer during reading. KW - reading KW - eye movements KW - eye-voice span KW - synchronization KW - working memory updating KW - psychologinguistics Y1 - 2015 U6 - https://doi.org/10.3389/fpsyg.2015.01432 SN - 1664-1078 VL - 6 IS - 1432 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Laubrock, Jochen A1 - Kliegl, Reinhold T1 - The eye-voice span during reading aloud JF - Frontiers in psychology N2 - Although eye movements during reading are modulated by cognitive processing demands, they also reflect visual sampling of the input, and possibly preparation of output for speech or the inner voice. By simultaneously recording eye movements and the voice during reading aloud, we obtained an output measure that constrains the length of time spent on cognitive processing. Here we investigate the dynamics of the eye-voice span (EVS), the distance between eye and voice. We show that the EVS is regulated immediately during fixation of a word by either increasing fixation duration or programming a regressive eye movement against the reading direction. EVS size at the beginning of a fixation was positively correlated with the likelihood of regressions and refixations. Regression probability was further increased if the EVS was still large at the end of a fixation: if adjustment of fixation duration did not sufficiently reduce the EVS during a fixation, then a regression rather than a refixation followed with high probability. We further show that the EVS can help understand cognitive influences on fixation duration during reading: in mixed model analyses, the EVS was a stronger predictor of fixation durations than either word frequency or word length. The EVS modulated the influence of several other predictors on single fixation durations (SFDs). For example, word-N frequency effects were larger with a large EVS, especially when word N-1 frequency was low. Finally, a comparison of SFDs during oral and silent reading showed that reading is governed by similar principles in both reading modes, although EVS maintenance and articulatory processing also cause some differences. In summary, the EVS is regulated by adjusting fixation duration and/or by programming a regressive eye movement when the EVS gets too large. Overall, the EVS appears to be directly related to updating of the working memory buffer during reading. KW - reading KW - eye movements KW - eye-voice span KW - synchronization KW - working memory updating KW - psychologinguistics Y1 - 2015 U6 - https://doi.org/10.3389/fpsyg.2015.01437 SN - 1664-1078 VL - 6 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Verhaeghen, Paul A1 - Kliegl, Reinhold T1 - The effects of learning a new algorithm on asymptotic accuracy and execution speed in old age : a reanalysis Y1 - 2000 ER - TY - JOUR A1 - Krampe, Ralf-Thomas A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - The effects of expertise and age on rhythm production : adaptations to timing and sequencing constraints Y1 - 2002 ER - TY - JOUR A1 - Baayen, Harald R. A1 - Vasishth, Shravan A1 - Kliegl, Reinhold A1 - Bates, Douglas T1 - The cave of shadows: Addressing the human factor with generalized additive mixed models JF - Journal of memory and language KW - Generalized additive mixed models KW - Within-experiment adaptation KW - Autocorrelation KW - Experimental time series KW - Confirmatory versus exploratory data analysis KW - Model selection Y1 - 2017 U6 - https://doi.org/10.1016/j.jml.2016.11.006 SN - 0749-596X SN - 1096-0821 VL - 94 SP - 206 EP - 234 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Mayr, Ulrich A1 - Junker, Martina A1 - Fanselow, Gisbert T1 - Testing age invariance in language processes Y1 - 1999 SN - 0-7923-8526-8 ER - TY - JOUR A1 - Scheffczyk, Christian A1 - Krampe, Ralf-Thomas A1 - Engbert, Ralf A1 - Rosenblum, Michael A1 - Kurths, Jürgen A1 - Kliegl, Reinhold T1 - Tempo-induced transitions in polyrhythmic hand movements N2 - We investigate the cognitive control in polyrhythmic hand movements as a model paradigm for bimanual coordination. Using a symbolic coding of the recorded time series, we demonstrate the existence of qualitative transitions induced by experimental manipulation of the tempo. A nonlinear model with delayed feedback control is proposed, which accounts for these dynamical transitions in terms of bifurcations resulting from variation of the external control parameter. Furthermore, it is shown that transitions can also be observed due to fluctuations in the timing control level. We conclude that the complexity of coordinated bimanual movements results from interactions between nonlinear control mechanisms with delayed feedback and stochastic timing components. Y1 - 1997 ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Mayr, Ulrich T1 - Task-set switching and long-term memory retrieval Y1 - 2000 ER - TY - JOUR A1 - Fanselow, Gisbert A1 - Kliegl, Reinhold A1 - Schlesewsky, Matthias T1 - Syntactic variation in German wh-questions Y1 - 2008 ER - TY - JOUR A1 - Dambacher, Michael A1 - Kliegl, Reinhold T1 - Synchronizing timelines : relations between fixation durations and N400 amplitudes during sentence reading N2 - We examined relations between eye movements (single-fixation durations) and RSVP-based event-related potentials (ERPs; N400s) recorded during reading the same sentences in two independent experiments. Longer fixation durations correlated with larger N400 amplitudes. Word frequency and predictability of the fixated word as well as the predictability of the upcoming word accounted for this covariance in a path-analytic model. Moreover, larger N400 amplitudes entailed longer fixation durations on the next word, a relation accounted for by word frequency. This pattern offers a neurophysiological correlate for the lag-word frequency effect on fixation durations: word processing is reliably expressed not only in fixation durations on currently fixated words, but also in those on subsequently fixated words. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/00068993 U6 - https://doi.org/10.1016/j.brainres.2007.04.027 SN - 0006-8993 ER - TY - JOUR A1 - Engbert, Ralf A1 - Krampe, Ralf-Thomas A1 - Kliegl, Reinhold T1 - Synchronizing movements with the metronome : nonlinear error corrections and unstable periodic orbits Y1 - 2002 ER - TY - JOUR A1 - Romano, Maria Carmen A1 - Thiel, Marco A1 - Kurths, Jürgen A1 - Rolfs, Martin A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - Synchronization Analysis and Recurrence in Complex Systems Y1 - 2006 SN - 978-3-527-40623-4 ER - TY - JOUR A1 - Schiek, Michael A1 - Scheffczyk, Christian A1 - Engbert, Ralf A1 - Kurths, Jürgen A1 - Krampe, Ralf-Thomas A1 - Kliegl, Reinhold A1 - Drepper, Friedhelm R. T1 - Symbolic dynamics of physiological synchronisation : examples from bimanual movements and cardiorespiratory interaction N2 - Key words: Nonlinear time series analysis, symbolic dynamics, phase transitions, physiological data, biological synchronization, production of polyrhythms, cardiorespiratory interaction, variation of control parameter Y1 - 1997 ER - TY - JOUR A1 - Engbert, Ralf A1 - Scheffczyk, Christian A1 - Krampe, Ralf-Thomas A1 - Kurths, Jürgen A1 - Kliegl, Reinhold T1 - Symbolic dynamics of bimanual production of polyrhythms N2 - We analyse time series from a study on bimanual rhythmic movements in which the speed of performance (the external control parameter) was experimentally manipulated. Using symbolic transformations as a visualization technique we observe qualitative changes in the dynamics of the timing patterns. Such phase transitions are quantitatively described by measures of complexity. Using these results we develop an advanced symbolic coding which enables us to detect important dynamical structures. Furthermore, our analysis raises new questions concerning the modelling of the underlying human cognitive-motor system. Y1 - 2002 SN - 3-540- 63481-9 ER - TY - JOUR A1 - Laubrock, Jochen A1 - Kliegl, Reinhold A1 - Engbert, Ralf T1 - SWIFT explorations of age differences in eye movements during reading Y1 - 2006 UR - http://www.sciencedirect.com/science/journal/01497634 U6 - https://doi.org/10.1016/j.neubiorev.2006.06.013 SN - 0149-7634 ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Engbert, Ralf T1 - SWIFT explorations Y1 - 2003 ER - TY - JOUR A1 - Engbert, Ralf A1 - Nuthmann, Antje A1 - Richter, Eike M. A1 - Kliegl, Reinhold T1 - SWIFT : A dynamical model of saccade generation during reading N2 - Mathematical, models,have become an important tool for understanding the control of eye movements during reading. Main goals of the development of the SWIFT model (R. Engbert, A. Longtin, & R. Kliegl, 2002) were to investigate the possibility of spatially distributed processing and to implement a general mechanism for all types of eye movements observed in reading experiments. The authors present an advanced version of SWIFT that integrates properties of the oculomotor system and effects of word recognition to explain many of the experimental phenomena faced in reading research. They propose new procedures for the estimation of model parameters and for the test of the model's performance. They also present a mathematical analysis of the dynamics of the SWIFT model. Finally, within this framework, they present an analysis of the transition from parallel to serial processing Y1 - 2005 SN - 0033-295X ER - TY - JOUR A1 - Boston, Marisa Ferrara A1 - Hale, John A1 - Kliegl, Reinhold A1 - Vasishth, Shravan T1 - Surprising parser actions and reading difficulty Y1 - 2008 ER - TY - JOUR A1 - Dambacher, Michael A1 - Dimigen, Olaf A1 - Braun, Mario A1 - Wille, Kristin A1 - Jacobs, Arthur M. A1 - Kliegl, Reinhold T1 - Stimulus onset asynchrony and the timeline of word recognition: Event-related potentials during sentence reading JF - Neuropsychologia : an international journal in behavioural and cognitive neuroscience N2 - Three ERP experiments examined the effect of word presentation rate (i.e., stimulus onset asynchrony, SOA) on the time course of word frequency and predictability effects in sentence reading. In Experiments 1 and 2, sentences were presented word-by-word in the screen center at an SOA of 700 and 490 ms, respectively. While these rates are typical for psycholinguistic ERP research, natural reading happens at a considerably faster pace. Accordingly. Experiment 3 employed a near-normal SOA of 280 ms, which approximated the rate of normal reading. Main results can be summarized as follows: (1) The onset latency of early frequency effects decreases gradually with increasing presentation rates. (2) An early interaction between top-down and bottom-up processing is observed only under a near-normal SOA. (3) N400 predictability effects occur later and are smaller at a near-normal (i.e., high) presentation rate than at the lower rates commonly used in ERP experiments. (4) ERP morphology is different at the shortest compared to longer SOAs. Together, the results point to a special role of a near-normal presentation rate for visual word recognition and therefore suggest that SOA should be taken into account in research of natural reading. KW - Word recognition KW - Sentence reading KW - Stimulus onset asynchrony (SOA) KW - Frequency KW - Predictability KW - Event-related potentials (ERPs) Y1 - 2012 U6 - https://doi.org/10.1016/j.neuropsychologia.2012.04.011 SN - 0028-3932 VL - 50 IS - 8 SP - 1852 EP - 1870 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Lindenberger, Ulman A1 - Mayr, Ulrich A1 - Kliegl, Reinhold T1 - Speed and intelligence in old age Y1 - 1993 ER - TY - JOUR A1 - Matuschek, Hannes A1 - Kliegl, Reinhold A1 - Holschneider, Matthias T1 - Smoothing Spline ANOVA Decomposition of Arbitrary Splines: An Application to Eye Movements in Reading JF - PLoS one N2 - The Smoothing Spline ANOVA (SS-ANOVA) requires a specialized construction of basis and penalty terms in order to incorporate prior knowledge about the data to be fitted. Typically, one resorts to the most general approach using tensor product splines. This implies severe constraints on the correlation structure, i.e. the assumption of isotropy of smoothness can not be incorporated in general. This may increase the variance of the spline fit, especially if only a relatively small set of observations are given. In this article, we propose an alternative method that allows to incorporate prior knowledge without the need to construct specialized bases and penalties, allowing the researcher to choose the spline basis and penalty according to the prior knowledge of the observations rather than choosing them according to the analysis to be done. The two approaches are compared with an artificial example and with analyses of fixation durations during reading. Y1 - 2015 U6 - https://doi.org/10.1371/journal.pone.0119165 SN - 1932-6203 VL - 10 IS - 3 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Oberauer, Klaus A1 - Kliegl, Reinhold T1 - Simultaneous cognitive operations in working memory after dual-task practice N2 - The authors tested the hypothesis that with adequate practice, people can execute 2 cognitive operations in working memory simultaneously. In Experiment 1, 6 students practiced updating 2 items in working memory through 2 sequences of operations (1 numerical, 1 spatial). In different blocks, imperative stimuli for the 2 sequences of operations were presented either simultaneously or sequentially. Initially, most participants experienced substantial dual-task costs. After 24 sessions of practice, operation latencies for simultaneous presentation were equal to the maximum of times for the 2 operations in the sequential condition, suggesting perfect timesharing. Experiment 2 showed that a reduction of dual-task costs requires practice on the combination of the 2 updating tasks, not just practice on each individual task. Hence, the reduction of dual-task costs cannot be explained by shortening or automatization of individual operations Y1 - 2004 SN - 0096-1523 ER - TY - JOUR A1 - Rolfs, Martin A1 - Laubrock, Jochen A1 - Kliegl, Reinhold T1 - Shortening and prolongation of saccade latencies following microsaccades N2 - When the eyes fixate at a point in a visual scene, small saccades rapidly shift the image on the retina. The effect of these microsaccades on the latency of subsequent large-scale saccades may be twofold. First, microsaccades are associated with an enhancement of visual perception. Their occurrence during saccade target perception could, thus, decrease saccade latencies. Second, microsaccades are likely to indicate activity in fixation-related oculomotor neurons. These represent competitors to saccade-related cells in the interplay of gaze holding and shifting. Consequently, an increase in saccade latencies would be expected after microsaccades. Here, we present evidence for both aspects of microsaccadic impact on saccade latency. In a delayed response task, participants made saccades to visible or memorized targets. First, microsaccade occurrence up to 50 ms before target disappearance correlated with 18 ms (or 8%) faster saccades to memorized targets. Second, if microsaccades occurred shortly (i.e., < 150 ms) before a saccade was required, mean saccadic reaction time in visual and memory trials was increased by about 40 ms (or 16%). Hence, microsaccades can have opposite consequences for saccade latencies, pointing at a differential role of these fixational eye movements in the preparation of saccade motor programs Y1 - 2006 UR - http://www.springerlink.com/content/y67j226367352u28/fulltext.html U6 - https://doi.org/10.1007/s00221-005-0148-1 ER - TY - JOUR A1 - Engbert, Ralf A1 - Rabe, Maximilian Michael A1 - Kliegl, Reinhold A1 - Reich, Sebastian T1 - Sequential data assimilation of the stochastic SEIR epidemic model for regional COVID-19 dynamics JF - Bulletin of mathematical biology : official journal of the Society for Mathematical Biology N2 - Newly emerging pandemics like COVID-19 call for predictive models to implement precisely tuned responses to limit their deep impact on society. Standard epidemic models provide a theoretically well-founded dynamical description of disease incidence. For COVID-19 with infectiousness peaking before and at symptom onset, the SEIR model explains the hidden build-up of exposed individuals which creates challenges for containment strategies. However, spatial heterogeneity raises questions about the adequacy of modeling epidemic outbreaks on the level of a whole country. Here, we show that by applying sequential data assimilation to the stochastic SEIR epidemic model, we can capture the dynamic behavior of outbreaks on a regional level. Regional modeling, with relatively low numbers of infected and demographic noise, accounts for both spatial heterogeneity and stochasticity. Based on adapted models, short-term predictions can be achieved. Thus, with the help of these sequential data assimilation methods, more realistic epidemic models are within reach. KW - Stochastic epidemic model KW - Sequential data assimilation KW - Ensemble Kalman KW - filter KW - COVID-19 Y1 - 2020 U6 - https://doi.org/10.1007/s11538-020-00834-8 SN - 0092-8240 SN - 1522-9602 VL - 83 IS - 1 PB - Springer CY - New York ER - TY - JOUR A1 - Mayr, Ulrich A1 - Kliegl, Reinhold A1 - Krampe, Ralf-Thomas T1 - Sequential and coordinative processing dynamics in figural transformations across the life span Y1 - 1996 ER - TY - JOUR A1 - Verhaeghen, Paul A1 - Kliegl, Reinhold A1 - Mayr, Ulrich T1 - Sequential and coordinative complexity in time-accurary functions for mental arithmetic Y1 - 1997 ER - TY - JOUR A1 - Mayr, Ulrich A1 - Kliegl, Reinhold T1 - Sequential and coordinative complexity : age-based processing limitations in figural transformation N2 - Dimensions of cognitive complexity in figural transformations were examined in the context of adult age differences. Sequential complexity was manipulated through figural transformations of single objects in a multiple- object array. Coordinative complexity was induced through spatial or nonspatial transformations of the entire array. Results confirmed the prediction that age-related slowing is larger in coordinative complexity than in sequential complexity conditions. The effect was stable across 8 sessions (Exp 1), was obtained when age groups were equated in accuracy with criterion-referenced testing (Exp 2), and was corroborated by age-differential probabilities of error types (Exps 1 and 2). A model is proposed attributing age effects under coordinative complexity to 2 factors: (1) basic- level slowing and (2) time-consuming reiterations through the processing sequence due to age-related working memory failures. (PsycINFO Database Record (c) 2012 APA, all rights reserved) Y1 - 1993 SN - 0278-7393 ER - TY - JOUR A1 - Kinder, Annette A1 - Rolfs, Martin A1 - Kliegl, Reinhold T1 - Sequence learning at optimal stimulus-response mapping : evidence from a serial reaction-time task N2 - We propose a new version of the serial reaction time (SRT) task in which participants merely looked at the target instead of responding manually. As response locations were identical to target locations, stimulus - response compatibility was maximal in this task. We demonstrated that saccadic response times decreased during training and increased again when a new sequence was presented. It is unlikely that this effect was caused by stimulus - response (S - R) learning because bonds between (visual) stimuli and (oculomotor) responses were already well established before the experiment started. Thus, the finding shows that the building of S - R bonds is not essential for learning in the SRT task. Y1 - 2008 UR - http://tandfprod.literatumonline.com/doi/full/10.1080/17470210701557555 U6 - https://doi.org/10.1080/17470210701557555 ER - TY - JOUR A1 - Hohenstein, Sven A1 - Kliegl, Reinhold T1 - Semantic preview benefit in eye movements during reading : a parafoveal fast-priming study N2 - Eye movements in reading are sensitive to foveal and parafoveal word features. Whereas the influence of orthographic or phonological parafoveal information on gaze control is undisputed, there has been no reliable evidence for early parafoveal extraction of semantic information in alphabetic script. Using a novel combination of the gaze- contingent fast-priming and boundary paradigms, we demonstrate semantic preview benefit when a semantically related parafoveal word was available during the initial 125 ms of a fixation on the pretarget word (Experiments 1 and 2). When the target location was made more salient, significant parafoveal semantic priming occurred only at 80 ms (Experiment 3). Finally, with short primes only (20, 40, 60 ms), effects were not significant but were numerically in the expected direction for 40 and 60 ms (Experiment 4). In all experiments, fixation durations on the target word increased with prime durations under all conditions. The evidence for extraction of semantic information from the parafoveal word favors an explanation in terms of parallel word processing in reading. Y1 - 2010 UR - http://www.apa.org/pubs/journals/xlm/ U6 - https://doi.org/10.1037/A0020233 SN - 0278-7393 ER - TY - JOUR A1 - Hohenstein, Sven A1 - Kliegl, Reinhold T1 - Semantic preview benefit during reading JF - Journal of experimental psychology : Learning, memory, and cognition N2 - Word features in parafoveal vision influence eye movements during reading. The question of whether readers extract semantic information from parafoveal words was studied in 3 experiments by using a gaze-contingent display change technique. Subjects read German sentences containing 1 of several preview words that were replaced by a target word during the saccade to the preview (boundary paradigm). In the 1st experiment the preview word was semantically related or unrelated to the target. Fixation durations on the target were shorter for semantically related than unrelated previews, consistent with a semantic preview benefit. In the 2nd experiment, half the sentences were presented following the rules of German spelling (i.e., previews and targets were printed with an initial capital letter), and the other half were presented completely in lowercase. A semantic preview benefit was obtained under both conditions. In the 3rd experiment, we introduced 2 further preview conditions, an identical word and a pronounceable nonword, while also manipulating the text contrast. Whereas the contrast had negligible effects, fixation durations on the target were reliably different for all 4 types of preview. Semantic preview benefits were greater for pretarget fixations closer to the boundary (large preview space) and, although not as consistently, for long pretarget fixation durations (long preview time). The results constrain theoretical proposals about eye movement control in reading. KW - eye movements KW - reading KW - semantic preview benefit KW - parafoveal processing KW - display change awareness Y1 - 2014 U6 - https://doi.org/10.1037/a0033670 SN - 0278-7393 SN - 1939-1285 VL - 40 IS - 1 SP - 166 EP - 190 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Ohl, Sven A1 - Brandt, Stephan A. A1 - Kliegl, Reinhold T1 - Secondary (micro-)saccades the influence of primary saccade end point and target eccentricity on the process of postsaccadic fixation JF - Vision research : an international journal for functional aspects of vision. N2 - We examine how the size of saccadic under-/overshoot and target eccentricity influence the latency, amplitude and orientation of secondary (micro-)saccades. In our experiment, a target appeared at an eccentricity of either 6 degrees or 14 degrees of visual angle. Subjects were instructed to direct their gaze as quickly as possible to the target and hold fixation at the new location until the end of the trial. Typically, increasing saccadic error is associated with faster and larger secondary saccades. We show that secondary saccades at distant in contrast to close targets have in a specific error range a shorter latency, larger amplitude, and follow more often the direction of the primary saccade. Finally, we demonstrate that an undershooting primary saccade is followed almost exclusively by secondary saccades into the same direction while overshooting primary saccades are followed by secondary saccades into both directions. This supports the notion that under- and overshooting imply different consequences for postsaccadic oculomotor processing. Results are discussed using a model, introduced by Rolfs, Kliegl, and Engbert (2008), to account for the generation of microsaccades. We argue that the dynamic interplay of target eccentricity and the magnitude of the saccadic under-/overshoot can be explained by a different strength of activation in the two hemispheres of the saccadic motor map in this model. KW - Secondary saccade KW - Microsaccade KW - Saccadic error KW - Error-correction KW - Target eccentricity Y1 - 2011 U6 - https://doi.org/10.1016/j.visres.2011.09.005 SN - 0042-6989 SN - 1878-5646 VL - 51 IS - 23-24 SP - 2340 EP - 2347 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Liang, Jin-Rong A1 - Moshel, Shay A1 - Zivotofsky, Ari Z. A1 - Caspi, Avi A1 - Engbert, Ralf A1 - Kliegl, Reinhold A1 - Havlin, Shlomo T1 - Scaling of horizontal and vertical fixational eye movements N2 - Eye movements during fixation of a stationary target prevent the adaptation of the visual system to continuous illumination and inhibit fading of the image. These random, involuntary, small movements are restricted at long time scales so as to keep the target at the center of the field of view. Here we use detrended fluctuation analysis in order to study the properties of fixational eye movements at different time scales. Results show different scaling behavior between horizontal and vertical movements. When the small ballistic movements, i.e., microsaccades, are removed, the scaling exponents in both planes become similar. Our findings suggest that microsaccades enhance the persistence at short time scales mostly in the horizontal component and much less in the vertical component. This difference may be due to the need for continuously moving the eyes in the horizontal plane, in order to match the stereoscopic image for different viewing distances Y1 - 2005 SN - 1063-651X ER - TY - JOUR A1 - Pan, Jinger A1 - Yan, Ming A1 - Laubrock, Jochen A1 - Shu, Hua A1 - Kliegl, Reinhold T1 - Saccade-target selection of dyslexic children when reading Chinese JF - Vision research : an international journal for functional aspects of vision. N2 - This study investigates the eye movements of dyslexic children and their age-matched controls when reading Chinese. Dyslexic children exhibited more and longer fixations than age-matched control children, and an increase of word length resulted in a greater increase in the number of fixations and gaze durations for the dyslexic than for the control readers. The report focuses on the finding that there was a significant difference between the two groups in the fixation landing position as a function of word length in single-fixation cases, while there was no such difference in the initial fixation of multi-fixation cases. We also found that both groups had longer incoming saccade amplitudes while the launch sites were closer to the word in single fixation cases than in multi-fixation cases. Our results suggest that dyslexic children's inefficient lexical processing, in combination with the absence of orthographic word boundaries in Chinese, leads them to select saccade targets at the beginning of words conservatively. These findings provide further evidence for parafoveal word segmentation during reading of Chinese sentences. KW - Chinese KW - Dyslexic children KW - Eye movements KW - Saccade-target selection KW - Reading Y1 - 2014 U6 - https://doi.org/10.1016/j.visres.2014.01.014 SN - 0042-6989 SN - 1878-5646 VL - 97 SP - 24 EP - 30 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Laurinavichyute, Anna A1 - Sekerina, Irina A. A1 - Alexeeva, Svetlana A1 - Bagdasaryan, Kristine A1 - Kliegl, Reinhold T1 - Russian Sentence Corpus: Benchmark measures of eye movements in reading in Russian JF - Behavior research methods : a journal of the Psychonomic Society N2 - This article introduces a new corpus of eye movements in silent readingthe Russian Sentence Corpus (RSC). Russian uses the Cyrillic script, which has not yet been investigated in cross-linguistic eye movement research. As in every language studied so far, we confirmed the expected effects of low-level parameters, such as word length, frequency, and predictability, on the eye movements of skilled Russian readers. These findings allow us to add Slavic languages using Cyrillic script (exemplified by Russian) to the growing number of languages with different orthographies, ranging from the Roman-based European languages to logographic Asian ones, whose basic eye movement benchmarks conform to the universal comparative science of reading (Share, 2008). We additionally report basic descriptive corpus statistics and three exploratory investigations of the effects of Russian morphology on the basic eye movement measures, which illustrate the kinds of questions that researchers can answer using the RSC. The annotated corpus is freely available from its project page at the Open Science Framework: https://osf.io/x5q2r/. KW - Reading KW - Eye movements KW - Russian KW - Ambiguity KW - Part of speech KW - Corpus Y1 - 2019 U6 - https://doi.org/10.3758/s13428-018-1051-6 SN - 1554-351X SN - 1554-3528 VL - 51 IS - 3 SP - 1161 EP - 1178 PB - Springer CY - New York ER - TY - JOUR A1 - Ohl, Sven A1 - Kliegl, Reinhold T1 - Revealing the time course of signals influencing the generation of JF - Vision research : an international journal for functional aspects of vision. N2 - Saccadic eye movements are frequently followed by smaller secondary saccades which are generally assumed to correct for the error in primary saccade landing position. However, secondary saccades can also occur after accurate primary saccades and they are often as small as microsaccades, therefore raising the need to further scrutinize the processes involved in secondary saccade generation. Following up a previous study, we analyzed secondary saccades using rate analysis which allows us to quantify experimental effects as shifts in distributions, therefore going beyond comparisons of mean differences. We use Aalen’s additive hazards model to delineate the time course of key influences on the secondary saccade rate. In addition to the established effect of primary saccade error, we observed a time-varying influence of under- vs. overshooting – with a higher risk of generating secondary saccades following undershoots. Moreover, increasing target eccentricity influenced the programming of secondary saccades, therefore demonstrating that error-unrelated variables co-determine secondary saccade programs. Our results provide new insights into the generative mechanisms of small saccades during postsaccadic fixation that need to be accounted for by secondary saccade models. KW - Eye movements KW - Corrective saccades KW - Secondary saccades KW - Rate analysis KW - Survival analysis Y1 - 2016 U6 - https://doi.org/10.1016/j.visres.2016.06.007 SN - 0042-6989 SN - 1878-5646 VL - 124 SP - 52 EP - 58 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Mayr, Ulrich A1 - Oberauer, Klaus T1 - Resource limitations and process dissociations in individual differences research Y1 - 2000 ER - TY - JOUR A1 - Krampe, Ralf-Thomas A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - Representational models and nonlinear dynamics : irreconcilable approaches to human movement timing and coordination or two sides of the same coin? : Introduction to the special issue on movement timing and coordination Y1 - 2002 ER - TY - JOUR A1 - Baptista, Murilo da Silva A1 - Bohn, Christiane A1 - Kliegl, Reinhold A1 - Engbert, Ralf A1 - Kurths, Jürgen T1 - Reconstruction of eye movements during blinks Y1 - 2008 UR - http://chaos.aip.org/ U6 - https://doi.org/10.1063/1.2890843 SN - 1054-1500 ER - TY - JOUR A1 - Asendorpf, Jens B. A1 - Conner, Mark A1 - De Fruyt, Filip A1 - De Houwer, Jan A1 - Denissen, Jaap J. A. A1 - Fiedler, Klaus A1 - Fiedler, Susann A1 - Funder, David C. A1 - Kliegl, Reinhold A1 - Nosek, Brian A. A1 - Perugini, Marco A1 - Roberts, Brent W. A1 - Schmitt, Manfred A1 - vanAken, Marcel A. G. A1 - Weber, Hannelore A1 - Wicherts, Jelte M. T1 - Recommendations for increasing replicability in psychology JF - European journal of personality N2 - Replicability of findings is at the heart of any empirical science. The aim of this article is to move the current replicability debate in psychology towards concrete recommendations for improvement. We focus on research practices but also offer guidelines for reviewers, editors, journal management, teachers, granting institutions, and university promotion committees, highlighting some of the emerging and existing practical solutions that can facilitate implementation of these recommendations. The challenges for improving replicability in psychological science are systemic. Improvement can occur only if changes are made at many levels of practice, evaluation, and reward. KW - replicability KW - confirmation bias KW - publication bias KW - generalizability KW - research transparency Y1 - 2013 U6 - https://doi.org/10.1002/per.1919 SN - 0890-2070 VL - 27 IS - 2 SP - 108 EP - 119 PB - Wiley-Blackwell CY - Hoboken ER - TY - JOUR A1 - Wotschack, Christiane A1 - Kliegl, Reinhold T1 - Reading strategy modulates parafoveal-on-foveal effects in sentence reading JF - The quarterly journal of experimental psychology N2 - Task demands and individual differences have been linked reliably to word skipping during reading. Such differences in fixation probability may imply a selection effect for multivariate analyses of eye-movement corpora if selection effects correlate with word properties of skipped words. For example, with fewer fixations on short and highly frequent words the power to detect parafoveal-on-foveal effects is reduced. We demonstrate that increasing the fixation probability on function words with a manipulation of the expected difficulty and frequency of questions reduces an age difference in skipping probability (i.e., old adults become comparable to young adults) and helps to uncover significant parafoveal-on-foveal effects in this group of old adults. We discuss implications for the comparison of results of eye-movement research based on multivariate analysis of corpus data with those from display-contingent manipulations of target words. KW - Fixational selectivity KW - Parafoveal-on-foveal effects KW - Reading strategy KW - Distributed processing KW - Eye movements in reading Y1 - 2013 U6 - https://doi.org/10.1080/17470218.2011.625094 SN - 1747-0218 VL - 66 IS - 3 SP - 548 EP - 562 PB - Wiley CY - Hove ER - TY - JOUR A1 - Yan, Ming A1 - Richter, Eike M. A1 - Shu, Hua A1 - Kliegl, Reinhold T1 - Readers of Chinese extract semantic information from parafoveal words N2 - Evidence for semantic preview benefit (PB) from parafoveal words has been elusive for reading alphabetic scripts such as English. Here we report semantic PB for noncompound characters in Chinese reading with the boundary paradigm. In addition, PBs for orthographic relatedness and, as a numeric trend, for phonological relatedness were obtained. Results are in agreement with other research suggesting that the Chinese writing system is based on a closer association between graphic form and meaning than is alphabetic script. We discuss implications for notions of serial attention shifts and parallel distributed processing of words during reading. Y1 - 2009 UR - http://pbr.psychonomic-journals.org/content/by/year U6 - https://doi.org/10.3758/Pbr.16.3.561 SN - 1069-9384 ER - TY - JOUR A1 - Yan, Ming A1 - Pan, Jinger A1 - Chang, Wenshuo A1 - Kliegl, Reinhold T1 - Read sideways or not: vertical saccade advantage in sentence reading JF - Reading and writing : an interdisciplinary journal N2 - During the reading of alphabetic scripts and scene perception, eye movements are programmed more efficiently in horizontal direction than in vertical direction. We propose that such a directional advantage may be due the overwhelming reading experience in the horizontal direction. Writing orientation is highly flexible for Traditional Chinese sentences. We compare horizontal and vertical eye movements during reading of such sentences and provide first evidence of a text-orientation effect on eye-movement control during reading. In addition to equivalent reading speed in both directions, more fine-grained analyses demonstrate a tradeoff between longer fixation durations and better fixation locations in vertical than in horizontal reading. Our results suggest that with extensive reading experience, Traditional Chinese readers can generate saccades more efficiently in vertical than in horizontal direction. KW - Chinese KW - Eye movement KW - Reading KW - Text orientation Y1 - 2019 U6 - https://doi.org/10.1007/s11145-018-9930-x SN - 0922-4777 SN - 1573-0905 VL - 32 IS - 8 SP - 1911 EP - 1926 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Kliegl, Reinhold T1 - Publication statistics show collaboration, not competition Y1 - 2008 ER - TY - JOUR A1 - Lindenberger, Ulman A1 - Kliegl, Reinhold A1 - Baltes, Paul B. T1 - Professional expertise does not eliminate negative age differences in imagery-based memory performance during adulthood Y1 - 1992 ER - TY - JOUR A1 - Fanselow, Gisbert A1 - Kliegl, Reinhold A1 - Schlesewsky, Matthias T1 - Processing difficulty and principles of grammar Y1 - 1999 ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Mayr, Ulrich A1 - Krampe, Ralf-Thomas T1 - Process dissociations in cognitive aging Y1 - 1995 ER - TY - JOUR A1 - Yan, Ming A1 - Risse, Sarah A1 - Zhou, Xiaolin A1 - Kliegl, Reinhold T1 - Preview fixation duration modulates identical and semantic preview benefit in Chinese reading JF - Reading and writing : an interdisciplinary journal N2 - Semantic preview benefit from parafoveal words is critical for proposals of distributed lexical processing during reading. Semantic preview benefit has been demonstrated for Chinese reading with the boundary paradigm in which unrelated or semantically related previews of a target word N + 1 are replaced by the target word once the eyes cross an invisible boundary located after word N (Yan et al., 2009); for the target word in position N + 2, only identical compared to unrelated-word preview led to shorter fixation times on the target word (Yan et al., in press). A reanalysis of these data reveals that identical and semantic preview benefits depend on preview duration (i.e., the fixation duration on the preboundary word). Identical preview benefit from word N + 1 increased with preview duration. The identical preview benefit was also significant for N + 2, but did not significantly interact with preview duration. The previously reported semantic preview benefit from word N + 1 was mainly due to single- or first-fixation durations following short previews. We discuss implications for notions of serial attention shifts and parallel distributed processing of words during reading. KW - Eye movement KW - Parafoveal processing KW - Semantic KW - Chinese Y1 - 2012 U6 - https://doi.org/10.1007/s11145-010-9274-7 SN - 0922-4777 SN - 1573-0905 VL - 25 IS - 5 SP - 1093 EP - 1111 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Risse, Sarah A1 - Laubrock, Jochen T1 - Preview benefit and parafoveal-on-foveal effects from word n+2 N2 - Using the gaze-contingent boundary paradigm with the boundary placed after word n, the experiment manipulated preview of word n + 2 for fixations on word n. There was no preview benefit for 1st-pass reading on word n + 2, replicating the results of K. Rayner, B. J. Juhasz, and S. J. Brown (2007), but there was a preview benefit on the 3- letter word n + 1, that is, after the boundary but before word n + 2. Additionally, both word n + 1 and word n + 2 exhibited parafoveal-on-foveal effects on word n. Thus, during a fixation on word n and given a short word n + 1, some information is extracted from word n + 2, supporting the hypothesis of distributed processing in the perceptual span. Y1 - 2007 UR - http://www.apa.org/pubs/journals/xhp/ U6 - https://doi.org/10.1037/0096-1523.33.5.1250 SN - 0096-1523 ER - TY - JOUR A1 - Nuthmann, Antje A1 - Kliegl, Reinhold T1 - Preferred viewing locations : a validation Y1 - 2009 SN - 0301-0066 ER - TY - JOUR A1 - Beurskens, Rainer A1 - Haeger, Matthias A1 - Kliegl, Reinhold A1 - Roecker, Kai A1 - Granacher, Urs T1 - Postural Control in Dual-Task Situations: Does Whole-Body Fatigue Matter? JF - PLoS one N2 - Postural control is important to cope with demands of everyday life. It has been shown that both attentional demand (i.e., cognitive processing) and fatigue affect postural control in young adults. However, their combined effect is still unresolved. Therefore, we investigated the effects of fatigue on single-(ST) and dual-task (DT) postural control. Twenty young subjects (age: 23.7 +/- 2.7) performed an all-out incremental treadmill protocol. After each completed stage, one-legged-stance performance on a force platform under ST (i.e., one-legged-stance only) and DT conditions (i.e., one-legged-stance while subtracting serial 3s) was registered. On a second test day, subjects conducted the same balance tasks for the control condition (i.e., non-fatigued). Results showed that heart rate, lactate, and ventilation increased following fatigue (all p < 0.001; d = 4.2-21). Postural sway and sway velocity increased during DT compared to ST (all p < 0.001; d = 1.9-2.0) and fatigued compared to non-fatigued condition (all p < 0.001; d = 3.3-4.2). In addition, postural control deteriorated with each completed stage during the treadmill protocol (all p < 0.01; d = 1.9-3.3). The addition of an attention-demanding interference task did not further impede one-legged-stance performance. Although both additional attentional demand and physical fatigue affected postural control in healthy young adults, there was no evidence for an overadditive effect (i.e., fatigue-related performance decrements in postural control were similar under ST and DT conditions). Thus, attentional resources were sufficient to cope with the DT situations in the fatigue condition of this experiment. Y1 - 2016 U6 - https://doi.org/10.1371/journal.pone.0147392 SN - 1932-6203 VL - 11 SP - 1379 EP - 1384 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Beurskens, Rainer A1 - Haeger, Matthias A1 - Kliegl, Reinhold A1 - Roecker, Kai A1 - Granacher, Urs T1 - Postural Control in Dual-Task Situations BT - Does Whole-Body Fatigue Matter? JF - PLoS one N2 - Postural control is important to cope with demands of everyday life. It has been shown that both attentional demand (i.e., cognitive processing) and fatigue affect postural control in young adults. However, their combined effect is still unresolved. Therefore, we investigated the effects of fatigue on single- (ST) and dual-task (DT) postural control. Twenty young subjects (age: 23.7 ± 2.7) performed an all-out incremental treadmill protocol. After each completed stage, one-legged-stance performance on a force platform under ST (i.e., one-legged-stance only) and DT conditions (i.e., one-legged-stance while subtracting serial 3s) was registered. On a second test day, subjects conducted the same balance tasks for the control condition (i.e., non-fatigued). Results showed that heart rate, lactate, and ventilation increased following fatigue (all p < 0.001; d = 4.2–21). Postural sway and sway velocity increased during DT compared to ST (all p < 0.001; d = 1.9–2.0) and fatigued compared to non-fatigued condition (all p < 0.001; d = 3.3–4.2). In addition, postural control deteriorated with each completed stage during the treadmill protocol (all p < 0.01; d = 1.9–3.3). The addition of an attention-demanding interference task did not further impede one-legged-stance performance. Although both additional attentional demand and physical fatigue affected postural control in healthy young adults, there was no evidence for an overadditive effect (i.e., fatigue-related performance decrements in postural control were similar under ST and DT conditions). Thus, attentional resources were sufficient to cope with the DT situations in the fatigue condition of this experiment. Y1 - 2016 U6 - https://doi.org/10.1371/journal.pone.0147392 SN - 1932-6203 VL - 11 IS - 1 SP - 1 EP - 15 PB - PLoS CY - Lawrence, Kan. ER - TY - JOUR A1 - Bohn, Christiane A1 - Kliegl, Reinhold T1 - Post-interpretive processes influence interpretive processing during reading: evidence from eye movements Y1 - 2007 SN - 978-18-4169-96-9 ER - TY - JOUR A1 - Teich, Paula A1 - Fühner, Thea Heidi A1 - Granacher, Urs A1 - Kliegl, Reinhold T1 - Physical fitness of primary school children differs depending on their timing of school enrollment JF - Scientific reports N2 - Previous research has shown that children who were enrolled to school according to the legal key date (i.e., keyage children, between eight and nine years in third grade) exhibited a linear physical fitness development in the ninth year of life. In contrast, children who were enrolled with a delay (i.e., older-than-keyage children [OTK], between nine and ten years in third grade) exhibited a lower physical fitness compared to what would be expected for their age. In these studies, cross-sectional age differences within third grade and timing of school enrollment were confounded. The present study investigated the longitudinal development of keyage and OTK children from third to fifth grade. This design also afforded a comparison of the two groups at the same average chronological age, that is a dissociation of the effects of timing of school enrollment and age. We tested six physical fitness components: cardiorespiratory endurance, coordination, speed, power of lower and upper limbs, and static balance. 1502 children (i.e., 1206 keyage and 296 OTK children) from 35 schools were tested in third, fourth, and fifth grade. Except for cardiorespiratory endurance, both groups developed from third to fourth and from fourth to fifth grade and keyage children outperformed OTK children at the average ages of 9.5 or 10.5 years. For cardiorespiratory endurance, there was no significant gain from fourth to fifth grade and keyage and OTK children did not differ significantly at 10.5 years of age. One reason for a delayed school enrollment could be that a child is (or is perceived as) biologically younger than their chronological age at the school entry examination, implying a negative correlation between chronological and biological age for OTK children. Indeed, a simple reflection of chronological age brought the developmental rate of the chronologically youngest OTK children in line with the developmental rate observed for keyage children, but did not eliminate all differences. The mapping of chronological and biological age of OTK children and other possible reasons for lower physical fitness of OTK children remain a task for future research. KW - Health care KW - Paediatrics KW - Physiology Y1 - 2023 U6 - https://doi.org/10.1038/s41598-023-35727-y SN - 2045-2322 VL - 13 IS - 1 PB - Springer Nature CY - London ER - TY - JOUR A1 - Moshel, Shay A1 - Liang, Jin-Rong A1 - Caspi, Avi A1 - Engbert, Ralf A1 - Kliegl, Reinhold A1 - Havlin, Shlomo A1 - Zivotofsky, Ari Z. T1 - Phase-synchronization decay of fixational eye movements Y1 - 2005 ER - TY - JOUR A1 - Moshel, Shay A1 - Zivotofsky, Ari Z. A1 - Liang, Jin-Rong A1 - Engbert, Ralf A1 - Kurths, Jürgen A1 - Kliegl, Reinhold A1 - Havlin, Shlomo T1 - Persistence and phase synchronization properties of fixational eye movement N2 - When we fixate our gaze on a stable object, our eyes move continuously with extremely small involuntary and autonomic movements, that even we are unaware of during their occurrence. One of the roles of these fixational eye movements is to prevent the adaptation of the visual system to continuous illumination and inhibit fading of the image. These random, small movements are restricted at long time scales so as to keep the target at the centre of the field of view. In addition, the synchronisation properties between both eyes are related to binocular coordination in order to provide stereopsis. We investigated the roles of different time scale behaviours, especially how they are expressed in the different spatial directions (vertical versus horizontal). We also tested the synchronisation between both eyes. Results show different scaling behaviour between horizontal and vertical movements. When the small ballistic movements, i.e., microsaccades, are removed, the scaling behaviour in both axes becomes similar. Our findings suggest that microsaccades enhance the persistence at short time scales mostly in the horizontal component and much less in the vertical component. We also applied the phase synchronisation decay method to study the synchronisation between six combinations of binocular fixational eye movement components. We found that the vertical-vertical components of right and left eyes are significantly more synchronised than the horizontal-horizontal components. These differences may be due to the need for continuously moving the eyes in the horizontal plane in order to match the stereoscopic image for different viewing distances. Y1 - 2008 UR - 1960 = DOI: 10.1140/epjst/e2008-00762-3 SN - 1951-6355 ER - TY - JOUR A1 - Yan, Ming A1 - Zhou, Wei A1 - Shu, Hua A1 - Kliegl, Reinhold T1 - Perceptual span depends on font size during the reading of chinese sentences JF - Journal of experimental psychology : Learning, memory, and cognition N2 - The present study explored the perceptual span (i.e., the physical extent of an area from which useful visual information is extracted during a single fixation) during the reading of Chinese sentences in 2 experiments. In Experiment 1, we tested whether the rightward span can go beyond 3 characters when visually similar masks were used. Results showed that Chinese readers needed at least 4 characters to the right of fixation to maintain a normal reading behavior when visually similar masks were used and when characters were displayed in small fonts, indicating that the span is dynamically influenced by masking materials. In Experiments 2 and 3, we asked whether the perceptual span varies as a function of font size in spaced (German) and unspaced (Chinese) scripts. Results clearly suggest perceptual span depends on font size in Chinese, but we failed to find such evidence for German. We propose that the perceptual span in Chinese is flexible; it is strongly constrained by its language-specific properties such as high information density and lack of word spacing. Implications for saccade-target selection during the reading of Chinese sentences are discussed. KW - eye movements KW - parafoveal processing KW - perceptual span KW - Chinese reading Y1 - 2015 U6 - https://doi.org/10.1037/a0038097 SN - 0278-7393 SN - 1939-1285 VL - 41 IS - 1 SP - 209 EP - 219 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Féry, Caroline A1 - Kaiser, Elsi A1 - Hörnig, Robin A1 - Weskott, Thomas A1 - Kliegl, Reinhold T1 - Perception of intonational contours on given and new referents : a completion study and an eye-movement experiment Y1 - 2009 SN - 978-3-11-021922-7 ER - TY - JOUR A1 - Boston, Marisa Ferrara A1 - Hale, John A1 - Kliegl, Reinhold A1 - Patil, Umesh A1 - Vasishth, Shravan T1 - Parsing costs as predictors of reading difficulty : an evaluation using the Potsdam Sentence Corpus Y1 - 2008 UR - http://www.jemr.org/ SN - 1995-8692 ER - TY - JOUR A1 - Boston, Marisa Ferrara A1 - Hale, John T. A1 - Vasishth, Shravan A1 - Kliegl, Reinhold T1 - Parallel processing and sentence comprehension difficulty JF - Language and cognitive processes N2 - Eye fixation durations during normal reading correlate with processing difficulty, but the specific cognitive mechanisms reflected in these measures are not well understood. This study finds support in German readers' eye fixations for two distinct difficulty metrics: surprisal, which reflects the change in probabilities across syntactic analyses as new words are integrated; and retrieval, which quantifies comprehension difficulty in terms of working memory constraints. We examine the predictions of both metrics using a family of dependency parsers indexed by an upper limit on the number of candidate syntactic analyses they retain at successive words. Surprisal models all fixation measures and regression probability. By contrast, retrieval does not model any measure in serial processing. As more candidate analyses are considered in parallel at each word, retrieval can account for the same measures as surprisal. This pattern suggests an important role for ranked parallelism in theories of sentence comprehension. KW - Reading KW - Parsing KW - Computer model KW - Corpus Y1 - 2011 U6 - https://doi.org/10.1080/01690965.2010.492228 SN - 0169-0965 VL - 26 IS - 3 SP - 301 EP - 349 PB - Wiley CY - Hove ER - TY - JOUR A1 - Boston, Marisa Ferrara A1 - Halbe, John T. A1 - Vasishth, Shravan A1 - Kliegl, Reinhold T1 - Parallel processing and entence comprehension difficulty N2 - Eye fixation durations during normal reading correlate with processing difficulty, but the specific cognitive mechanisms reflected in these measures are not well understood. This study finds support in German readers' eye fixations for two distinct difficulty metrics: surprisal, which reflects the change in probabilities across syntactic analyses as new words are integrated; and retrieval, which quantifies comprehension difficulty in terms of working memory constraints. We examine the predictions of both metrics using a family of dependency parsers indexed by an upper limit on the number of candidate syntactic analyses they retain at successive words. Surprisal models all fixation measures and regression probability. By contrast, retrieval does not model any measure in serial processing. As more candidate analyses are considered in parallel at each word, retrieval can account for the same measures as surprisal. This pattern suggests an important role for ranked parallelism in theories of sentence comprehension. Y1 - 2011 UR - http://www.tandfonline.com/doi/full/10.1080/01690965.2010.492228 U6 - https://doi.org/10.1080/01690965.2010.492228 ER - TY - JOUR A1 - Tsai, Jie-Li A1 - Kliegl, Reinhold A1 - Yan, Ming T1 - Parafoveal semantic information extraction in traditional Chinese reading JF - Acta psychologica : international journal of psychonomics N2 - Semantic information extraction from the parafovea has been reported only in simplified Chinese for a special subset of characters and its generalizability has been questioned. This study uses traditional Chinese, which differs from simplified Chinese in visual complexity and in mapping semantic forms, to demonstrate access to parafoveal semantic information during reading of this script. Preview duration modulates various types (identical, phonological, and unrelated) of parafoveal information extraction. Parafoveal semantic extraction is more elusive in English; therefore, we conclude that such effects in Chinese are presumably caused by substantial cross-language differences from alphabetic scripts. The property of Chinese characters carrying rich lexical information in a small region provides the possibility of semantic extraction in the parafovea. KW - Semantic preview benefit KW - Chinese reading KW - Eye movements Y1 - 2012 U6 - https://doi.org/10.1016/j.actpsy.2012.06.004 SN - 0001-6918 SN - 1873-6297 VL - 141 IS - 1 SP - 17 EP - 23 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Yan, Ming A1 - Wang, Aiping A1 - Song, Hosu A1 - Kliegl, Reinhold T1 - Parafoveal processing of phonology and semantics during the reading of Korean sentences JF - Cognition : international journal of cognitive science N2 - The present study sets out to address two fundamental questions in the reading of continuous texts: Whether semantic and phonological information from upcoming words can be accessed during natural reading. In the present study we investigated parafoveal processing during the reading of Korean sentences, manipulating semantic and phonological information from parafoveal preview words. In addition to the first evidence for a semantic preview effect in Korean, we found that Korean readers have stronger and more long-lasting phonological than semantic activation from parafoveal words in second-pass reading. The present study provides an example that human mind can flexibly adjust processing priority to different types of information based on the linguistic environment. KW - Semantic KW - Phonological KW - Preview benefit KW - Korean Y1 - 2019 U6 - https://doi.org/10.1016/j.cognition.2019.104009 SN - 0010-0277 SN - 1873-7838 VL - 193 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Angele, Bernhard A1 - Slattery, Timothy J. A1 - Yang, Jinmian A1 - Kliegl, Reinhold A1 - Rayner, Keith T1 - Parafoveal processing in reading : manipulating n+1 and n+2 previews simultaneously N2 - The boundary paradigm (Rayner, 1975) with a novel preview manipulation was used to examine the extent of parafoveal processing of words to the right of fixation. Words n + 1 and n + 2 had either correct or incorrect previews prior to fixation (prior to crossing the boundary location). In addition, the manipulation utilized either a high or low frequency word in word n + 1 location on the assumption that it would be more likely that n + 2 preview effects could be obtained when word n + 1 was high frequency. The primary findings were that there was no evidence for a preview benefit for word n + 2 and no evidence for parafoveal-on-foveal effects when word n + 1 is at least four letters long. We discuss implications for models of eye-movement control in reading. Y1 - 2008 UR - http://www.informaworld.com/smpp/title~content=t713683696~db=all U6 - https://doi.org/10.1080/13506280802009704 SN - 1350-6285 ER - TY - JOUR A1 - Yan, Ming A1 - Pan, Jinger A1 - Laubrock, Jochen A1 - Kliegl, Reinhold A1 - Shu, Hua T1 - Parafoveal processing efficiency in rapid automatized naming a comparison between Chinese normal and dyslexic children JF - Journal of experimental child psychology N2 - Dyslexic children are known to be slower than normal readers in rapid automatized naming (RAN). This suggests that dyslexics encounter local processing difficulties, which presumably induce a narrower perceptual span. Consequently, dyslexics should suffer less than normal readers from removing parafoveal preview. Here we used a gaze-contingent moving window paradigm in a RAN task to experimentally test this prediction. Results indicate that dyslexics extract less parafoveal information than control children. We propose that more attentional resources are recruited to the foveal processing because of dyslexics' less automatized translation of visual symbols into phonological output, thereby causing a reduction of the perceptual span. This in turn leads to less efficient preactivation of parafoveal information and, hence, more difficulty in processing the next foveal item. KW - Dyslexia KW - Eye movement KW - Perceptual span KW - Rapid automatized naming KW - Parafoveal processing KW - Linear mixed model Y1 - 2013 U6 - https://doi.org/10.1016/j.jecp.2013.01.007 SN - 0022-0965 VL - 115 IS - 3 SP - 579 EP - 589 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Yan, Ming A1 - Kliegl, Reinhold A1 - Shu, Hua A1 - Pan, Jinger A1 - Zhou, Xiaolin T1 - Parafoveal load of word N+1 modulates preprocessing effectiveness of word N+2 in chinese reading Y1 - 2010 U6 - https://doi.org/10.1037/a0019329 ER - TY - JOUR A1 - Hyönä, Jukka A1 - Heikkilä, Timo T. A1 - Vainio, Seppo A1 - Kliegl, Reinhold T1 - Parafoveal access to word stem during reading BT - an eye movement study JF - Cognition : international journal of cognitive science N2 - Previous studies (Hyona, Yan, & Vainio, 2018; Yan et al., 2014) have demonstrated that in morphologically rich languages a word's morphological status is processed parafoveally to be used in modulating saccadic programming in reading. In the present parafoveal preview study conducted in Finnish, we examined the exact nature of this effect by comparing reading of morphologically complex words (a stem + two suffixes) to that of monomorphemic words. In the preview-change condition, the final 3-4 letters were replaced with other letters making the target word a pseudoword; for suffixed words, the word stem remained intact but the suffix information was unavailable; for monomorphemic words, only part of the stem was parafoveally available. Three alternative predictions were put forth. According to the first alternative, the morphological effect in initial fixation location is due to parafoveally perceiving the suffix as a highly frequent letter cluster and then adjusting the saccade program to land closer to the word beginning for suffixed than monomorphemic words. The second alternative, the processing difficulty hypothesis, assumes a morphological complexity effect: suffixed words are more complex than monomorphemic words. Therefore, the attentional window is narrower and the saccade is shorter. The third alternative posits that the effect reflects parafoveal access to the word's stem. The results for the initial fixation location and fixation durations were consistent with the parafoveal stem-access view. KW - Eye movements KW - Reading KW - Morphological complexity KW - Parafoveal processing KW - Display change KW - Initial fixation location Y1 - 2021 U6 - https://doi.org/10.1016/j.cognition.2020.104547 SN - 0010-0277 SN - 1873-7838 VL - 208 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Matuschek, Hannes A1 - Kliegl, Reinhold T1 - On the ambiguity of interaction and nonlinear main effects in a regime of dependent covariates JF - Behavior research methods : a journal of the Psychonomic Society N2 - The analysis of large experimental datasets frequently reveals significant interactions that are difficult to interpret within the theoretical framework guiding the research. Some of these interactions actually arise from the presence of unspecified nonlinear main effects and statistically dependent covariates in the statistical model. Importantly, such nonlinear main effects may be compatible (or, at least, not incompatible) with the current theoretical framework. In the present literature, this issue has only been studied in terms of correlated (linearly dependent) covariates. Here we generalize to nonlinear main effects (i.e., main effects of arbitrary shape) and dependent covariates. We propose a novel nonparametric method to test for ambiguous interactions where present parametric methods fail. We illustrate the method with a set of simulations and with reanalyses (a) of effects of parental education on their children’s educational expectations and (b) of effects of word properties on fixation locations during reading of natural sentences, specifically of effects of length and morphological complexity of the word to be fixated next. The resolution of such ambiguities facilitates theoretical progress. KW - Interaction effects KW - Mixed models KW - Additive mixed models KW - Regression splines KW - Non-parametric curve estimation Y1 - 2017 U6 - https://doi.org/10.3758/s13428-017-0956-9 SN - 1554-351X SN - 1554-3528 VL - 50 IS - 5 SP - 1882 EP - 1894 PB - Springer CY - New York ER - TY - JOUR A1 - Hofmann, Markus J. A1 - Dambacher, Michael A1 - Jacobs, Arthur M. A1 - Kliegl, Reinhold A1 - Radach, Ralph A1 - Kuchinke, Lars A1 - Plichta, Michael M. A1 - Fallgatter, Andreas J. A1 - Herrmann, Martin J. T1 - Occipital and orbitofrontal hemodynamics during naturally paced reading: An fNIRS study JF - NeuroImage : a journal of brain function N2 - Humans typically read at incredibly fast rates, because they predict likely occurring words from a given context. Here, we used functional near-infrared spectroscopy (fNIRS) to track the ultra-rapid hemodynamic responses of words presented every 280 ms in a naturally paced sentence context. We found a lower occipital deoxygenation to unpredictable than to predictable words. The greater hemodynamic responses to unexpected words suggest that the visual features of expected words have been pre-activated previous to stimulus presentation. Second, we tested opposing theoretical proposals about the role of the medial orbitofrontal cortex (OFC): Either OFC may respond to the breach of expectation; or OFC is activated when the present stimulus matches the prediction. A significant interaction between word frequency and predictability indicated OFC responses to breaches of expectation for low- but not for high-frequency words: OFC is sensitive to both, bottom-up processing as mediated by word frequency, as well as top-down predictions. Particularly, when a rare word is unpredictable, OFC becomes active. Finally, we discuss how a high temporal resolution can help future studies to disentangle the hemodynamic responses of single trials in such an ultra-rapid event succession as naturally paced reading. (C) 2014 Elsevier Inc. All rights reserved. KW - Frontopolar KW - Orbitofrontal KW - Bayesian brain KW - Predictive coding KW - Cloze probability Y1 - 2014 U6 - https://doi.org/10.1016/j.neuroimage.2014.03.014 SN - 1053-8119 SN - 1095-9572 VL - 94 SP - 193 EP - 202 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Scheffczyk, Christian A1 - Engbert, Ralf A1 - Kurths, Jürgen A1 - Krampe, Ralf-Thomas A1 - Kliegl, Reinhold T1 - Nonlinear Phenomena in Polyrhythmic Hand Movements N2 - In this paper we apply symbolic transformations as a visualisation technique for analysing rhythm production. It is shown that qualitative information can be extracted from the experimental data. This approach may provide new insights into the organisation of temporal order by the brain on different levels of description. A simple phenomenological model for the explanation of the observed phenomena is proposed. Y1 - 1995 SN - 981-02-2689-6 ER - TY - JOUR A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - Noise-enhanced performance in reading Y1 - 2003 ER - TY - JOUR A1 - Jünger, Elisabeth A1 - Kliegl, Reinhold A1 - Oberauer, Klaus T1 - No evidence for feature overwriting in visual working memory JF - Memory Y1 - 2014 SN - 0965-8211 SN - 1464-0686 VL - 22 IS - 4 SP - 374 EP - 389 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Nuthmann, Antje A1 - Vitu, Francoise A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - No Evidence for a Saccadic Range Effect for Visually Guided and Memory-Guided Saccades in Simple Saccade-Targeting Tasks JF - PLoS one N2 - Saccades to single targets in peripheral vision are typically characterized by an undershoot bias. Putting this bias to a test, Kapoula [1] used a paradigm in which observers were presented with two different sets of target eccentricities that partially overlapped each other. Her data were suggestive of a saccadic range effect (SRE): There was a tendency for saccades to overshoot close targets and undershoot far targets in a block, suggesting that there was a response bias towards the center of eccentricities in a given block. Our Experiment 1 was a close replication of the original study by Kapoula [1]. In addition, we tested whether the SRE is sensitive to top-down requirements associated with the task, and we also varied the target presentation duration. In Experiments 1 and 2, we expected to replicate the SRE for a visual discrimination task. The simple visual saccade-targeting task in Experiment 3, entailing minimal top-down influence, was expected to elicit a weaker SRE. Voluntary saccades to remembered target locations in Experiment 3 were expected to elicit the strongest SRE. Contrary to these predictions, we did not observe a SRE in any of the tasks. Our findings complement the results reported by Gillen et al. [2] who failed to find the effect in a saccade-targeting task with a very brief target presentation. Together, these results suggest that unlike arm movements, saccadic eye movements are not biased towards making saccades of a constant, optimal amplitude for the task. Y1 - 2016 U6 - https://doi.org/10.1371/journal.pone.0162449 SN - 1932-6203 VL - 11 SP - 9935 EP - 9943 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Johanssen, Helen A1 - Schoofs, Nikola A1 - Kliegl, Reinhold A1 - Bermpohl, Felix A1 - Ülsmann, Dominik A1 - Schulte-Herbrüggen, Olaf A1 - Priebe, Kathlen T1 - Negative posttraumatic cognitions color the pathway from event centrality to posttraumatic stress disorder symptoms JF - Cognitive therapy and research N2 - Background The centrality of an event indicates the extent to which it becomes a core part of identity and life story. Event centrality (EC) has been shown to have a strong relationship with PTSD symptoms, which seems to be indirectly influenced by negative posttraumatic cognitions (PTC). However, research on this potential mediation and its causal links particularly with clinical samples is limited and essential to derive treatment implications. Methods Pre- and posttreatment data of 103 day-unit patients with PTSD was examined using mediation analyses and structural equation modeling. Results Negative PTC mediated the relationship between EC and PTSD symptoms, partially pre- and completely posttreatment. Within extended longitudinal analyses causal directions of the mediation pathways were not adequately interpretable due to unexpected suppression effects. Conclusions The results suggest that EC may only have an indirect effect on PTSD symptoms through negative PTC. Thus, decreasing negative PTC which are connected to centralized events might be a key element for PTSD treatment. Thereby, transforming the cognitions' valence to more positive and constructive forms could be crucial rather than mere decentralization. Although suppression effects limited causal inferences, they do not contradict the mediation and further indicate potential interactional terms and a transformation of EC. KW - Event centrality KW - PTSD KW - Posttraumatic cognitions KW - Valence Y1 - 2022 U6 - https://doi.org/10.1007/s10608-021-10266-w SN - 0147-5916 SN - 1573-2819 VL - 46 IS - 2 SP - 333 EP - 342 PB - Springer Science + Business Media B.V. CY - Dordrecht ER - TY - JOUR A1 - Masson, Michael E. J. A1 - Kliegl, Reinhold T1 - Modulation of additive and interactive effects in lexical decision by Trial History JF - Journal of experimental psychology : Learning, memory, and cognition N2 - Additive and interactive effects of word frequency, stimulus quality, and semantic priming have been used to test theoretical claims about the cognitive architecture of word-reading processes. Additive effects among these factors have been taken as evidence for discrete-stage models of word reading. We present evidence from linear mixed-model analyses applied to 2 lexical decision experiments indicating that apparent additive effects can be the product of aggregating over- and underadditive interaction effects that are modulated by recent trial history, particularly the lexical status and stimulus quality of the previous trial's target. Even a simple practice effect expressed as improved response speed across trials was powerfully modulated by the nature of the previous target item. These results suggest that additivity and interaction between factors may reflect trial-to-trial variation in stimulus representations and decision processes rather than fundamental differences in processing architecture. KW - additive and interactive effects KW - effects of trial history KW - lexical decision KW - linear mixed models Y1 - 2013 U6 - https://doi.org/10.1037/a0029180 SN - 0278-7393 VL - 39 IS - 3 SP - 898 EP - 914 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Masson, Michael E. J. A1 - Rabe, Maximilian M. A1 - Kliegl, Reinhold T1 - Modulation of additive and interactive effects by trial history revisited JF - Memory & cognition KW - Additive and interactive effects KW - Effects of trial history KW - Lexical decision KW - Data transformation KW - Linear mixed models Y1 - 2017 U6 - https://doi.org/10.3758/s13421-016-0666-z SN - 0090-502X SN - 1532-5946 VL - 45 SP - 480 EP - 492 PB - Springer CY - New York ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Lindenberger, Ulman T1 - Modeling intrusions and correct recall in episodic memory : adult age differences in encoding of list context Y1 - 1993 ER - TY - JOUR A1 - Nuthmann, Antje A1 - Engbert, Ralf A1 - Kliegl, Reinhold T1 - Mislocated fixations during reading and the inverted optimal viewing position effect N2 - Refixation probability during reading is lowest near the word center, suggestive of an optimal viewing position (OVP). Counter-intuitively, fixation durations are largest at the OVP, a result called the inverted optimal viewing position (IOVP) effect [Vitu, McConkie, Kerr, & O'Regan, (2001). Vision Research 41, 3513-3533]. Current models of eye-movement control in reading fail to reproduce the IOVP effect. We propose a simple mechanism for generating this effect based on error-correction of mislocated fixations due to saccadic errors, First, we propose an algorithm for estimating proportions of mislocated fixations from experimental data yielding a higher probability for mislocated fixations near word boundaries. Second, we assume that mislocated fixations trigger an immediate start of a new saccade program causing a decrease of associated durations. Thus, the IOVP effect could emerge as a result of a coupling between cognitive and oculomotor processes. (c) 2005 Elsevier Ltd. All rights reserved Y1 - 2005 ER - TY - JOUR A1 - Brown, J. M. M. A1 - Fanselow, Gisbert A1 - Hall, Rebecca A1 - Kliegl, Reinhold T1 - Middle ratings rise regardless of grammatical construction BT - Testing syntactic variability in a repeated exposure paradigm JF - PLOS ONE / Public Library of Science N2 - People perceive sentences more favourably after hearing or reading them many times. A prominent approach in linguistic theory argues that these types of exposure effects (satiation effects) show direct evidence of a generative approach to linguistic knowledge: only some sentences improve under repeated exposure, and which sentences do improve can be predicted by a model of linguistic competence that yields natural syntactic classes. However, replications of the original findings have been inconsistent, and it remains unclear whether satiation effects can be reliably induced in an experimental setting at all. Here we report four findings regarding satiation effects in wh-questions across German and English. First, the effects pertain to zone of well-formedness rather than syntactic class: all intermediate ratings, including calibrated fillers, increase at the beginning of the experimental session regardless of syntactic construction. Second, though there is satiation, ratings asymptote below maximum acceptability. Third, these effects are consistent across judgments of superiority effects in English and German. Fourth, wh-questions appear to show similar profiles in English and German, despite these languages being traditionally considered to differ strongly in whether they show effects on movement: violations of the superiority condition can be modulated to a similar degree in both languages by manipulating subject-object initiality and animacy congruency of the wh-phrase. We improve on classic satiation methods by distinguishing between two crucial tests, namely whether exposure selectively targets certain grammatical constructions or whether there is a general repeated exposure effect. We conclude that exposure effects can be reliably induced in rating experiments but exposure does not appear to selectively target certain grammatical constructions. Instead, they appear to be a phenomenon of intermediate gradient judgments. Y1 - 2021 U6 - https://doi.org/10.1371/journal.pone.0251280 SN - 1932-6203 VL - 16 IS - 5 PB - PLOS CY - San Fransisco ER - TY - JOUR A1 - Kliegl, Reinhold A1 - Rolfs, Martin A1 - Laubrock, Jochen A1 - Engbert, Ralf T1 - Microsaccadic modulation of response times in spatial attention tasks Y1 - 2009 UR - http://www.springerlink.com/content/101575 U6 - https://doi.org/10.1007/s00426-008-0202-2 SN - 0340-0727 ER -