@article{MatuschekKliegl2017,
  author    = {Matuschek, Hannes and Kliegl, Reinhold},
  title     = {On the ambiguity of interaction and nonlinear main effects in a regime of dependent covariates},
  series = {Behavior research methods : a journal of the Psychonomic Society},
  volume    = {50},
  journal   = {Behavior research methods : a journal of the Psychonomic Society},
  number    = {5},
  publisher = {Springer},
  address   = {New York},
  issn      = {1554-351X},
  doi       = {10.3758/s13428-017-0956-9},
  pages     = {1882 -- 1894},
  year      = {2017},
  abstract  = {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.},
  language  = {en}
}
@article{YanWangSongetal.2019,
  author    = {Yan, Ming and Wang, Aiping and Song, Hosu and Kliegl, Reinhold},
  title     = {Parafoveal processing of phonology and semantics during the reading of Korean sentences},
  series = {Cognition : international journal of cognitive science},
  volume    = {193},
  journal   = {Cognition : international journal of cognitive science},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0010-0277},
  doi       = {10.1016/j.cognition.2019.104009},
  pages     = {7},
  year      = {2019},
  abstract  = {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.},
  language  = {en}
}
@article{BrownFanselowHalletal.2021,
  author    = {Brown, J. M. M. and Fanselow, Gisbert and Hall, Rebecca and Kliegl, Reinhold},
  title     = {Middle ratings rise regardless of grammatical construction},
  series = {PLOS ONE / Public Library of Science},
  volume    = {16},
  journal   = {PLOS ONE / Public Library of Science},
  number    = {5},
  publisher = {PLOS},
  address   = {San Fransisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0251280},
  pages     = {26},
  year      = {2021},
  abstract  = {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.},
  language  = {en}
}
@misc{HohensteinMatuschekKliegl2017,
  author    = {Hohenstein, Sven and Matuschek, Hannes and Kliegl, Reinhold},
  title     = {Linked linear mixed models: A joint analysis of fixation locations and fixation durations in natural reading},
  series = {Psychonomic bulletin \& review : a journal of the Psychonomic Society},
  volume    = {24},
  journal   = {Psychonomic bulletin \& review : a journal of the Psychonomic Society},
  publisher = {Springer},
  address   = {New York},
  issn      = {1069-9384},
  doi       = {10.3758/s13423-016-1138-y},
  pages     = {637 -- 651},
  year      = {2017},
  abstract  = {The complexity of eye-movement control during reading allows measurement of many dependent variables, the most prominent ones being fixation durations and their locations in words. In current practice, either variable may serve as dependent variable or covariate for the other in linear mixed models (LMMs) featuring also psycholinguistic covariates of word recognition and sentence comprehension. Rather than analyzing fixation location and duration with separate LMMs, we propose linking the two according to their sequential dependency. Specifically, we include predicted fixation location (estimated in the first LMM from psycholinguistic covariates) and its associated residual fixation location as covariates in the second, fixation-duration LMM. This linked LMM affords a distinction between direct and indirect effects (mediated through fixation location) of psycholinguistic covariates on fixation durations. Results confirm the robustness of distributed processing in the perceptual span. They also offer a resolution of the paradox of the inverted optimal viewing position (IOVP) effect (i.e., longer fixation durations in the center than at the beginning and end of words) although the opposite (i.e., an OVP effect) is predicted from default assumptions of psycholinguistic processing efficiency: The IOVP effect in fixation durations is due to the residual fixation-location covariate, presumably driven primarily by saccadic error, and the OVP effect (at least the left part of it) is uncovered with the predicted fixation-location covariate, capturing the indirect effects of psycholinguistic covariates. We expect that linked LMMs will be useful for the analysis of other dynamically related multiple outcomes, a conundrum of most psychonomic research.},
  language  = {en}
}
@article{KlieglHohensteinYanetal.2013,
  author    = {Kliegl, Reinhold and Hohenstein, Sven and Yan, Ming and McDonald, Scott A.},
  title     = {How preview space/time translates into preview cost/benefit for fixation durations during reading},
  series = {The quarterly journal of experimental psychology},
  volume    = {66},
  journal   = {The quarterly journal of experimental psychology},
  number    = {3},
  publisher = {Wiley},
  address   = {Hove},
  issn      = {1747-0218},
  doi       = {10.1080/17470218.2012.658073},
  pages     = {581 -- 600},
  year      = {2013},
  abstract  = {Eye-movement control during reading depends on foveal and parafoveal information. If the parafoveal preview of the next word is suppressed, reading is less efficient. A linear mixed model (LMM) reanalysis of McDonald (2006) confirmed his observation that preview benefit may be limited to parafoveal words that have been selected as the saccade target. Going beyond the original analyses, in the same LMM, we examined how the preview effect (i.e., the difference in single-fixation duration, SFD, between random-letter and identical preview) depends on the gaze duration on the pretarget word and on the amplitude of the saccade moving the eye onto the target word. There were two key results: (a) The shorter the saccade amplitude (i.e., the larger preview space), the shorter a subsequent SFD with an identical preview; this association was not observed with a random-letter preview. (b) However, the longer the gaze duration on the pretarget word, the longer the subsequent SFD on the target, with the difference between random-letter string and identical previews increasing with preview time. A third patternincreasing cost of a random-letter string in the parafovea associated with shorter saccade amplitudeswas observed for target gaze durations. Thus, LMMs revealed that preview effects, which are typically summarized under preview benefit, are a complex mixture of preview cost and preview benefit and vary with preview space and preview time. The consequence for reading is that parafoveal preview may not only facilitate, but also interfere with lexical access.},
  language  = {en}
}
@article{HohensteinKliegl2014,
  author    = {Hohenstein, Sven and Kliegl, Reinhold},
  title     = {Semantic preview benefit during reading},
  series = {Journal of experimental psychology : Learning, memory, and cognition},
  volume    = {40},
  journal   = {Journal of experimental psychology : Learning, memory, and cognition},
  number    = {1},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {0278-7393},
  doi       = {10.1037/a0033670},
  pages     = {166 -- 190},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@article{HohensteinKliegl2010,
  author    = {Hohenstein, Sven and Kliegl, Reinhold},
  title     = {Semantic preview benefit in eye movements during reading : a parafoveal fast-priming study},
  issn      = {0278-7393},
  doi       = {10.1037/A0020233},
  year      = {2010},
  abstract  = {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.},
  language  = {en}
}
@article{ThielRomanoKurthsetal.2008,
  author    = {Thiel, Marco and Romano, Maria Carmen and Kurths, J{\"u}rgen and Rolfs, Martin and Kliegl, Reinhold},
  title     = {Generating surrogates from recurrences},
  issn      = {1364-503X},
  year      = {2008},
  abstract  = {In this paper, we present an approach to recover the dynamics from recurrences of a system and then generate (multivariate) twin surrogate (TS) trajectories. In contrast to other approaches, such as the linear-like surrogates, this technique produces surrogates which correspond to an independent copy of the underlying system, i.e. they induce a trajectory of the underlying system visiting the attractor in a different way. We show that these surrogates are well suited to test for complex synchronization, which makes it possible to systematically assess the reliability of synchronization analyses. We then apply the TS to study binocular fixational movements and find strong indications that the fixational movements of the left and right eye are phase synchronized. This result indicates that there might be only one centre in the brain that produces the fixational movements in both eyes or a close link between the two centres.},
  language  = {en}
}
@article{Kliegl2007,
  author    = {Kliegl, Reinhold},
  title     = {Towards a perceptual-span theory of distributed processing in reading : a reply to Rayner, Pollatsek, Drieghe, Slattery, and Reichle},
  year      = {2007},
  language  = {en}
}
@article{YanKlieglRichteretal.2010,
  author    = {Yan, Ming and Kliegl, Reinhold and Richter, Eike M. and Nuthmann, Antje and Shu, Hua},
  title     = {Flexible saccade-target selection in Chinese reading},
  issn      = {1747-0218},
  doi       = {10.1080/17470210903114858},
  year      = {2010},
  abstract  = {As Chinese is written without orthographical word boundaries (i.e., spaces), it is unclear whether saccade targets are selected on the basis of characters or words and whether saccades are aimed at the beginning or the centre of words. Here, we report an experiment where 30 Chinese readers read 150 sentences while their eye movements were monitored. They exhibited a strong tendency to fixate at the word centre in single-fixation cases and at the word beginning in multiple-fixation cases. Different from spaced alphabetic script, initial fixations falling at the end of words were no more likely to be followed by a refixation than initial fixations at word centre. Further, single fixations were shorter than first fixations in two-fixation cases, which is opposite to what is found in Roman script. We propose that Chinese readers dynamically select the beginning or centre of words as saccade targets depending on failure or success with segmentation of parafoveal word boundaries.},
  language  = {en}
}
@article{KlieglEngbert2005,
  author    = {Kliegl, Reinhold and Engbert, Ralf},
  title     = {Fixation durations before word skipping in reading},
  issn      = {1069-9384},
  year      = {2005},
  abstract  = {We resolve a controversy about reading fixations before word-skipping saccades which were reported as longer or shorter than control fixations in earlier studies. Our statistics are based on resampling of matched sets of fixations before skipped and nonskipped words, drawn from a database of 121,321 single fixations contributed by 230 readers of the Potsdam sentence corpus. Matched fixations originated from single-fixation forward-reading patterns and were equated for their positions within words. Fixations before skipped words were shorter before short or high-frequency words and longer before long or low-frequency words in comparison with control fixations. Reasons for inconsistencies in past research and implications for computational models are discussed},
  language  = {en}
}
@article{RolfsEngbertKliegl2005,
  author    = {Rolfs, Martin and Engbert, Ralf and Kliegl, Reinhold},
  title     = {Crossmodal coupling of oculomotor control and spatial attention in vision and audition},
  issn      = {0014-4819},
  year      = {2005},
  abstract  = {Fixational eye movements occur involuntarily during visual fixation of stationary scenes. The fastest components of these miniature eye movements are microsaccades, which can be observed about once per second. Recent studies demonstrated that microsaccades are linked to covert shifts of visual attention. Here, we generalized this finding in two ways. First, we used peripheral cues, rather than the centrally presented cues of earlier studies. Second, we spatially cued attention in vision and audition to visual and auditory targets. An analysis of microsaccade responses revealed an equivalent impact of visual and auditory cues on microsaccade-rate signature (i.e. an initial inhibition followed by an overshoot and a final return to the pre-cue baseline rate). With visual cues or visual targets, microsaccades were briefly aligned with cue direction and then opposite to cue direction during the overshoot epoch, probably as a result of an inhibition of an automatic saccade to the peripheral cue. With left auditory cues and auditory targets microsaccades oriented in cue direction. We argue that microsaccades can be used to study crossmodal integration of sensory information and to map the time course of saccade preparation during covert shifts of visual and auditory attention},
  language  = {en}
}
@article{KlieglBates2011,
  author    = {Kliegl, Reinhold and Bates, Douglas},
  title     = {International collaboration in psychology is on the rise},
  doi       = {10.1007/s11192-010-0299-0},
  year      = {2011},
  abstract  = {There has been a substantial increase in the percentage for publications with co-authors located in departments from different countries in 12 major journals of psychology. The results are evidence for a remarkable internationalization of psychological research, starting in the mid 1970s and increasing in rate at the beginning of the 1990s. This growth occurs against a constant number of articles with authors from the same country; it is not due to a concomitant increase in the number of co-authors per article. Thus, international collaboration in psychology is obviously on the rise.},
  language  = {en}
}
@article{MayrKlieglKrampe2005,
  author    = {Mayr, Ulrich and Kliegl, Reinhold and Krampe, Ralf-Thomas},
  title     = {Timing, sequencing and executive control in repetitive movement production},
  issn      = {0096-1523},
  year      = {2005},
  abstract  = {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.},
  language  = {en}
}
@article{FiedlerKlieglLindenbergeretal.2005,
  author    = {Fiedler, K. and Kliegl, Reinhold and Lindenberger, Ulman and Mausfeld, Reinhold and Mumendy, A. and Prinz, Wolfgang},
  title     = {Psychologie im 21. Jahrhundert : eine Ortbestimmung},
  issn      = {1618-8519},
  year      = {2005},
  language  = {de}
}
@article{LiangMoshelZivotofskyetal.2005,
  author    = {Liang, Jin-Rong and Moshel, Shay and Zivotofsky, Ari Z. and Caspi, Avi and Engbert, Ralf and Kliegl, Reinhold and Havlin, Shlomo},
  title     = {Scaling of horizontal and vertical fixational eye movements},
  issn      = {1063-651X},
  year      = {2005},
  abstract  = {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},
  language  = {en}
}
@article{LaubrockEngbertKliegl2005,
  author    = {Laubrock, Jochen and Engbert, Ralf and Kliegl, Reinhold},
  title     = {Microsaccade dynamics during covert attention},
  issn      = {0042-6989},
  year      = {2005},
  abstract  = {We compared effects of covert spatial-attention shifts induced with exogenous or endogenous cues on microsaccade rate and direction. Separate and dissociated effects were obtained in rate and direction measures. Display changes caused microsaccade rate inhibition, followed by sustained rate enhancement. Effects on microsaccade direction were differentially tied to cue class (exogenous vs. endogenous) and type (neutral vs. directional). For endogenous cues, direction effects were weak and occurred late. Exogenous cues caused a fast direction bias towards the cue (i.e., early automatic triggering of saccade programs), followed by a shift in the opposite direction (i.e, controlled inhibition of cue-directed saccades, leading to a 'leakage' of microsaccades in the opposite direction). (C) 2004 Elsevier Ltd. All rights reserved},
  language  = {en}
}
@article{KlieglGrabnerRolfsetal.2004,
  author    = {Kliegl, Reinhold and Grabner, Ellen and Rolfs, Martin and Engbert, Ralf},
  title     = {Length, frequency, and predictability effects of words on eye movements in reading},
  year      = {2004},
  language  = {en}
}
@article{EngbertKlieglLongtin2004,
  author    = {Engbert, Ralf and Kliegl, Reinhold and Longtin, Andre},
  title     = {Complexity of eye movements in reading},
  year      = {2004},
  abstract  = {During reading, our eyes perform complicated sequences of fixations on words. Stochastic models of eye movement control suggest that this seemingly erratic behaviour can be attributed to noise in the oculomotor system and random fluctuations in lexical processing. Here, we present a qualitative analysis of a recently published dynamical model [Engbert et al., 2002] and propose that deterministic nonlinear control accounts for much of the observed complexity of eye movement patterns during reading. Based on a symbolic coding technique we analyze robust statistical features of simulated fixation sequences},
  language  = {en}
}
@article{OberauerKliegl2004,
  author    = {Oberauer, Klaus and Kliegl, Reinhold},
  title     = {Simultaneous cognitive operations in working memory after dual-task practice},
  issn      = {0096-1523},
  year      = {2004},
  abstract  = {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},
  language  = {en}
}
@article{MayrKliegl2003,
  author    = {Mayr, Ulrich and Kliegl, Reinhold},
  title     = {Differential effects of cue changes and task changes on task-set selection costs},
  issn      = {0278-7393},
  year      = {2003},
  language  = {en}
}
@article{EngbertKliegl2003,
  author    = {Engbert, Ralf and Kliegl, Reinhold},
  title     = {Microsaccades uncover the orientation of covert attention},
  year      = {2003},
  language  = {en}
}
@article{EngbertKliegl2003,
  author    = {Engbert, Ralf and Kliegl, Reinhold},
  title     = {Noise-enhanced performance in reading},
  year      = {2003},
  language  = {en}
}
@article{KlieglKrampeMayr2003,
  author    = {Kliegl, Reinhold and Krampe, Ralf-Thomas and Mayr, Ulrich},
  title     = {Formal models of age differences in task complexity effects},
  year      = {2003},
  language  = {en}
}
@article{KlieglEngbert2003,
  author    = {Kliegl, Reinhold and Engbert, Ralf},
  title     = {SWIFT explorations},
  year      = {2003},
  language  = {en}
}
@article{EngbertKliegl2003,
  author    = {Engbert, Ralf and Kliegl, Reinhold},
  title     = {The game of word skipping : who are the competitors?},
  year      = {2003},
  abstract  = {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},
  language  = {en}
}
@article{ZhouWangShuetal.2018,
  author    = {Zhou, Wei and Wang, Aiping and Shu, Hua and Kliegl, Reinhold and Yan, Ming},
  title     = {Word segmentation by alternating colors facilitates eye guidance in Chinese reading},
  series = {Memory \& cognition},
  volume    = {46},
  journal   = {Memory \& cognition},
  number    = {5},
  publisher = {Springer},
  address   = {New York},
  issn      = {0090-502X},
  doi       = {10.3758/s13421-018-0797-5},
  pages     = {729 -- 740},
  year      = {2018},
  abstract  = {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.},
  language  = {en}
}
@article{YanPanKliegl2019,
  author    = {Yan, Ming and Pan, Jinger and Kliegl, Reinhold},
  title     = {Eye Movement Control in Chinese Reading: A Cross-Sectional Study},
  series = {Developmental psychology},
  volume    = {55},
  journal   = {Developmental psychology},
  number    = {11},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {0012-1649},
  doi       = {10.1037/dev0000819},
  pages     = {2275 -- 2285},
  year      = {2019},
  abstract  = {The present study explored the age-related changes of eye movement control in reading-that is, where to send the eyes and when to move them. Different orthographies present readers with somewhat different problems to solve, and this might, in turn, be reflected in different patterns of development of reading skill. Participants of different developmental levels (Grade 3, N = 30; Grade 5, N = 27 and adults, N = 27) were instructed to read sentences for comprehension while their eye movements were recorded. Contrary to previous findings that have been well documented indicating early maturation of saccade generation in English, current results showed that saccade generation among Chinese readers was still under development at Grade 5, although immediate lexical processing was relatively well-established. The distinct age-related changes in eye movements are attributable to certain linguistic properties of Chinese including the lack of interword spaces and word boundary uncertainty. The present study offers an example of how human eye movement adapts to the orthographic environment.},
  language  = {en}
}
@article{YanPanChangetal.2019,
  author    = {Yan, Ming and Pan, Jinger and Chang, Wenshuo and Kliegl, Reinhold},
  title     = {Read sideways or not: vertical saccade advantage in sentence reading},
  series = {Reading and writing : an interdisciplinary journal},
  volume    = {32},
  journal   = {Reading and writing : an interdisciplinary journal},
  number    = {8},
  publisher = {Springer},
  address   = {Dordrecht},
  issn      = {0922-4777},
  doi       = {10.1007/s11145-018-9930-x},
  pages     = {1911 -- 1926},
  year      = {2019},
  abstract  = {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.},
  language  = {en}
}
@article{LiWangMoetal.2018,
  author    = {Li, Nan and Wang, Suiping and Mo, Luxi and Kliegl, Reinhold},
  title     = {Contextual constraint and preview time modulate the semantic preview effect},
  series = {The quarterly journal of experimental psychology},
  volume    = {71},
  journal   = {The quarterly journal of experimental psychology},
  number    = {1},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {1747-0218},
  doi       = {10.1080/17470218.2017.1310914},
  pages     = {241 -- 249},
  year      = {2018},
  abstract  = {Word recognition in sentence reading is influenced by information from both preview and context. Recently, semantic preview effect (SPE) was observed being modulated by the constraint of context, indicating that context might accelerate the processing of semantically related preview words. Besides, SPE was found to depend on preview time, which suggests that SPE may change with different processing stages of preview words. Therefore, it raises the question of whether preview time-dependent SPE would be modulated by contextual constraint. In this study, we not only investigated the impact of contextual constraint on SPE in Chinese reading but also examined its dependency on preview time. The preview word and the target word were identical, semantically related or unrelated to the target word. The results showed a significant three-way interaction: The SPE depended on contextual constraint and preview time. In separate analyses for low and high contextual constraint of target words, the SPE significantly decreased with an increase in preview duration when the target word was of low constraint in the sentence. The effect was numerically in the same direction but weaker and statistically nonsignificant when the target word was highly constrained in the sentence. The results indicate that word processing in sentences is a dynamic process of integrating information from both preview (bottom-up) and context (top-down).},
  language  = {en}
}
@article{RisseKliegl2011,
  author    = {Risse, Sarah and Kliegl, Reinhold},
  title     = {Adult age difference in the perceptual span during reading},
  year      = {2011},
  abstract  = {Following up on research suggesting an age-related reduction in the rightward extent of the perceptual span during reading (Rayner, Castelhano, \& Yang, 2009), we compared old and young adults in an N + 2-boundary paradigm in which a nonword preview of word N + 2 or word N + 2 itself is replaced by the target word once the eyes cross an invisible boundary located after word N. The intermediate word N + 1 was always three letters long. Gaze durations on word N + 2 were significantly shorter for identical than nonword N + 2 preview both for young and for old adults, with no significant difference in this preview benefit. Young adults, however, did modulate their gaze duration on word N more strongly than old adults in response to the difficulty of the parafoveal word N + 1. Taken together, the results suggest a dissociation of preview benefit and parafoveal-on-foveal effect. Results are discussed in terms of age-related decline in resilience towards distributed processing while simultaneously preserving the ability to integrate parafoveal information into foveal processing. As such, the present results relate to proposals of regulatory compensation strategies older adults use to secure an overall reading speed very similar to that of young adults. (PsycINFO Database Record (c) 2011 APA, all rights reserved)},
  language  = {en}
}
@article{KlieglRisseLaubrock2007,
  author    = {Kliegl, Reinhold and Risse, Sarah and Laubrock, Jochen},
  title     = {Preview benefit and parafoveal-on-foveal effects from word n+2},
  issn      = {0096-1523},
  doi       = {10.1037/0096-1523.33.5.1250},
  year      = {2007},
  abstract  = {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.},
  language  = {en}
}
@article{RisseKliegl2012,
  author    = {Risse, Sarah and Kliegl, Reinhold},
  title     = {Evidence for delayed Parafoveal-on-Foveal effects from word n+2 in reading},
  series = {Journal of experimental psychology : Human perception and performance},
  volume    = {38},
  journal   = {Journal of experimental psychology : Human perception and performance},
  number    = {4},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {0096-1523},
  doi       = {10.1037/a0027735},
  pages     = {1026 -- 1042},
  year      = {2012},
  abstract  = {During reading information is acquired from word(s) beyond the word that is currently looked at. It is still an open question whether such parafoveal information can influence the current viewing of a word, and if so, whether such parafoveal-on-foveal effects are attributable to distributed processing or to mislocated fixations which occur when the eyes are directed at a parafoveal word but land on another word instead. In two display-change experiments, we orthogonally manipulated the preview and target difficulty of word n+2 to investigate the role of mislocated fixations on the previous word n+1. When the eyes left word n, an easy or difficult word n+2 preview was replaced by an easy or difficult n+2 target word. In Experiment 1, n+2 processing difficulty was manipulated by means of word frequency (i.e., easy high-frequency vs. difficult low-frequency word n+2). In Experiment 2, we varied the visual familiarity of word n+2 (i.e., easy lower-case vs. difficult alternating-case writing). Fixations on the short word n+1, which were likely to be mislocated, were nevertheless not influenced by the difficulty of the adjacent word n+2, the hypothesized target of the mislocated fixation. Instead word n+1 was influenced by the preview difficulty of word n+2, representing a delayed parafoveal-on-foveal effect. The results challenge the mislocated-fixation hypothesis as an explanation of parafoveal-on-foveal effects and provide new insight into the complex spatial and temporal effect structure of processing inside the perceptual span during reading.},
  language  = {en}
}
@article{RisseKliegl2014,
  author    = {Risse, Sarah and Kliegl, Reinhold},
  title     = {Dissociating preview validity and preview difficulty in parafoveal processing of word n+1 during reading},
  series = {Journal of experimental psychology : Human perception and performance},
  volume    = {40},
  journal   = {Journal of experimental psychology : Human perception and performance},
  number    = {2},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {0096-1523},
  doi       = {10.1037/a0034997},
  pages     = {653 -- 668},
  year      = {2014},
  abstract  = {Many studies have shown that previewing the next word n + 1 during reading leads to substantial processing benefit (e.g., shorter word viewing times) when this word is eventually fixated. However, evidence of such preprocessing in fixations on the preceding word n when in fact the information about the preview is acquired is far less consistent. A recent study suggested that such effects may be delayed into fixations on the next word n + 1 (Risse \& Kliegl, 2012). To investigate the time course of parafoveal information-acquisition on the control of eye movements during reading, we conducted 2 gaze-contingent display-change experiments and orthogonally manipulated the processing difficulty (i.e., word frequency) of an n + 1 preview word and its validity relative to the target word. Preview difficulty did not affect fixation durations on the pretarget word n but on the target word n + 1. In fact, the delayed preview-difficulty effect was almost of the same size as the preview benefit associated with the n + 1 preview validity. Based on additional results from quantile-regression analyses on the time course of the 2 preview effects, we discuss consequences as to the integration of foveal and parafoveal information and potential implications for computational models of eye guidance in reading.},
  language  = {en}
}
@article{RisseKliegl2011,
  author    = {Risse, Sarah and Kliegl, Reinhold},
  title     = {Adult age differences in the perceptual span during reading},
  series = {Psychology and aging},
  volume    = {26},
  journal   = {Psychology and aging},
  number    = {2},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {0882-7974},
  doi       = {10.1037/a0021616},
  pages     = {451 -- 460},
  year      = {2011},
  abstract  = {Following up on research suggesting an age-related reduction in the rightward extent of the perceptual span during reading (Rayner, Castelhano, \& Yang, 2009), we compared old and young adults in an N + 2-boundary paradigm in which a nonword preview of word N + 2 or word N + 2 itself is replaced by the target word once the eyes cross an invisible boundary located after word N. The intermediate word N + I was always three letters long. Gaze durations on word N + 2 were significantly shorter for identical than nonword N + 2 preview both for young and for old adults, with no significant difference in this preview benefit. Young adults, however, did modulate their gaze duration on word N more strongly than old adults in response to the difficulty of the parafoveal word N + I. Taken together, the results suggest a dissociation of preview benefit and parafoveal-on-foveal effect. Results are discussed in terms of age-related decline in resilience towards distributed processing while simultaneously preserving the ability to integrate parafoveal information into foveal processing. As such, the present results relate to proposals of regulatory compensation strategies older adults use to secure an overall reading speed very similar to that of young adults.},
  language  = {en}
}
@article{YanRisseZhouetal.2012,
  author    = {Yan, Ming and Risse, Sarah and Zhou, Xiaolin and Kliegl, Reinhold},
  title     = {Preview fixation duration modulates identical and semantic preview benefit in Chinese reading},
  series = {Reading and writing : an interdisciplinary journal},
  volume    = {25},
  journal   = {Reading and writing : an interdisciplinary journal},
  number    = {5},
  publisher = {Springer},
  address   = {Dordrecht},
  issn      = {0922-4777},
  doi       = {10.1007/s11145-010-9274-7},
  pages     = {1093 -- 1111},
  year      = {2012},
  abstract  = {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.},
  language  = {en}
}
@article{RisseEngbertKliegl2008,
  author    = {Risse, Sarah and Engbert, Ralf and Kliegl, Reinhold},
  title     = {Eye-movement control in reading : experimental and corpus-analysis challenges for a computational model},
  isbn      = {978-7-201-06107-8},
  year      = {2008},
  language  = {en}
}
@article{DambacherKliegl2007,
  author    = {Dambacher, Michael and Kliegl, Reinhold},
  title     = {Synchronizing timelines : relations between fixation durations and N400 amplitudes during sentence reading},
  issn      = {0006-8993},
  doi       = {10.1016/j.brainres.2007.04.027},
  year      = {2007},
  abstract  = {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.},
  language  = {en}
}
@article{AngeleSlatteryYangetal.2008,
  author    = {Angele, Bernhard and Slattery, Timothy J. and Yang, Jinmian and Kliegl, Reinhold and Rayner, Keith},
  title     = {Parafoveal processing in reading : manipulating n+1 and n+2 previews simultaneously},
  issn      = {1350-6285},
  doi       = {10.1080/13506280802009704},
  year      = {2008},
  abstract  = {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.},
  language  = {en}
}
@article{BohnKliegl2008,
  author    = {Bohn, Christiane and Kliegl, Reinhold},
  title     = {Mikrobewegungen des Auges und Nanophilologie : was uns die Blickbewegungen {\"u}ber die Verarbeitungsprozesse beim Lesen verraten},
  isbn      = {978-3-484-55047-6},
  year      = {2008},
  language  = {de}
}
@article{NuthmannEngbertKliegl2007,
  author    = {Nuthmann, Antje and Engbert, Ralf and Kliegl, Reinhold},
  title     = {The IOVP-effect in mindless reading : Experiment and modeling},
  doi       = {10.1016/j.visres.2006.11.005},
  year      = {2007},
  abstract  = {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.},
  language  = {en}
}
@article{ThielRomanoKurthsetal.2006,
  author    = {Thiel, Marco and Romano, Maria Carmen and Kurths, J{\"u}rgen and Rolfs, Martin and Kliegl, Reinhold},
  title     = {Twin surrogates to test for complex synchronisation},
  doi       = {10.1209/epl/i2006-10147-0},
  year      = {2006},
  abstract  = {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},
  language  = {en}
}
@article{KlieglWeiDambacheretal.2010,
  author    = {Kliegl, Reinhold and Wei, Ping and Dambacher, Michael and Yan, Ming and Zhou, Xiaolin},
  title     = {Experimental effects and individual differences in linear mixed models: estimating the relationship between spatial, object, and attraction effects in visual attention},
  doi       = {10.3389/fpsyg.2010.00238},
  year      = {2010},
  language  = {en}
}
@article{YanKlieglShuetal.2010,
  author    = {Yan, Ming and Kliegl, Reinhold and Shu, Hua and Pan, Jinger and Zhou, Xiaolin},
  title     = {Parafoveal load of word N+1 modulates preprocessing effectiveness of word N+2 in chinese reading},
  doi       = {10.1037/a0019329},
  year      = {2010},
  language  = {en}
}
@article{BohnKliegl2007,
  author    = {Bohn, Christiane and Kliegl, Reinhold},
  title     = {Post-interpretive processes influence interpretive processing during reading: evidence from eye movements},
  isbn      = {978-18-4169-96-9},
  year      = {2007},
  language  = {en}
}
@article{Kliegl2007,
  author    = {Kliegl, Reinhold},
  title     = {Zur Wahrnehmung und (Selbst-)Attribution von Kausalit{\"a}t},
  isbn      = {978-3-939818-07-6},
  year      = {2007},
  language  = {de}
}
@article{Kliegl2006,
  author    = {Kliegl, Reinhold},
  title     = {Multiple Zeitskalen in den Fixationsbewegungen der Augen},
  isbn      = {978-3-939818-05-2},
  year      = {2006},
  language  = {de}
}
@phdthesis{Kliegl1992,
  author    = {Kliegl, Reinhold},
  title     = {Ged{\"a}chtnis f{\"u}r Gedankenbilder : Altersunterschiede in Entwicklungskapazit{\"a}t und kognitiven Mechanismen},
  publisher = {Max-Planck-Institut f{\"u}r Bildungsforschung},
  address   = {Berlin},
  pages     = {XVIII, 325 S.},
  year      = {1992},
  language  = {de}
}
@article{DittmannKohliLachmannKliegletal.1991,
  author    = {Dittmann-Kohli, Freya and Lachmann, Margic and Kliegl, Reinhold and Baltes, Paul B.},
  title     = {Effects of cognitive training and testing on intellectual efficacy beliefs in elderly adults},
  year      = {1991},
  language  = {en}
}
@article{Kliegl2005,
  author    = {Kliegl, Reinhold},
  title     = {{\"U}ber rezeptive Ged{\"a}chtnisse},
  isbn      = {978-3-9522759-5-5},
  year      = {2005},
  language  = {de}
}