@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{RolfsLaubrockKliegl2008, author = {Rolfs, Martin and Laubrock, Jochen and Kliegl, Reinhold}, title = {Microsaccade-induced prolongation of saccadic latencies depends on microsaccade amplitude}, issn = {1995-8692}, year = {2008}, language = {en} } @article{RolfsKlieglEngbert2008, author = {Rolfs, Martin and Kliegl, Reinhold and Engbert, Ralf}, title = {Toward a model of microsaccade generation : the case of microsaccadic inhibition}, issn = {1534-7362}, doi = {10.1167/8.11.5}, year = {2008}, 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} } @misc{RheinbergManigKliegletal.2008, author = {Rheinberg, Falko and Manig, Yvette and Kliegl, Reinhold and Engeser, Stefan and Vollmeyer, Regina}, title = {Flow bei der Arbeit, doch Gl{\"u}ck in der Freizeit : Zielausrichtung, Flow und Gl{\"u}cksgef{\"u}hle}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-19740}, year = {2008}, abstract = {Bei N = 101 Arbeitnehmern verschiedener Berufe wurden mit der Experience Sampling Method (ESM) eine Woche lang Daten zum Flow-Erleben, zu Gl{\"u}ck/Zufriedenheit und zur Zielausrichtung laufender Aktivit{\"a}ten erhoben (N = 4603 Messungen). Die Daten wurden mit GLMM-Analysen ausgewertet. Auch bei der jetzt vollst{\"a}ndigen Erfassung aller Flow-Komponenten mit der FKS best{\"a}tigte sich das „Paradoxon der Arbeit", wonach w{\"a}hrend der Arbeit h{\"o}here Flow-Werte, aber niedrigere Werte f{\"u}r Gl{\"u}ck/Zufriedenheit auftreten als jeweils in der Freizeit. W{\"a}hrend der Arbeit waren Aktivit{\"a}ten h{\"a}ufiger auf die Erreichung von Zielen ausgerichtet als w{\"a}hrend der Freizeit. Die Zielausrichtung wirkte auf Flow vs. Gl{\"u}ck/Zufriedenheit signifikant verschieden. W{\"a}hrend der Arbeit hat die Zielausrichtung auf Flow einen stark positiven Effekt, auf Gl{\"u}ck/Zufriedenheit jedoch nicht. Im Freizeitbereich war der Effekt von Zielausrichtung auf Gl{\"u}ck/Zufriedenheit sogar negativ. Das „Paradoxon der Arbeit" l{\"a}sst sich partiell als Effekt der Zielausrichtung verstehen.}, language = {de} } @article{PhilippKliegl2008, author = {Philipp, Doris and Kliegl, Reinhold}, title = {F{\"a}higkeiten}, issn = {1438-8987}, year = {2008}, abstract = {Unter der Rubrik Didaktisches Stichwort beschaeftigen sich die Autoren mit der Persoenlichkeitsentwicklung im Umfeld der Arbeits- und Berufsfindung bei Jugendlichen und behandeln in diesem Zusammenhang vornehmlich die Begriffe Faehigkeit, Fertigkeit und die verschiedenen Facetten der Intelligenz. Sie stellen u. a. das Berliner Intelligenzstrukturmodell, eine Theorie multipler Intelligenzen sowie erweiterte Forschungsansaetze vor.}, language = {de} } @article{PhilippKliegl2008, author = {Philipp, Doris and Kliegl, Reinhold}, title = {Fertigkeiten}, issn = {1438-8987}, year = {2008}, abstract = {Im vorliegenden Didaktischen Stichwort wird der Begriff der Fertigkeit erlaeutert. Dazu unterscheiden die Autoren zunaechst verschiedene Arten von Fertigkeiten, stellen die Phasen des Fertigkeitserwerbs vor und zeigen diese exemplarisch am Erlernen des korrekten Gebrauchs eines Messschiebers im Rahmen von Mess- und Prueftechniken bei der Metallverarbeitung.}, language = {de} } @article{OngKliegl2008, author = {Ong, James Kwan Yau and Kliegl, Reinhold}, title = {Conditional co-occurrence probability acts like frequency in predicting fixation durations}, issn = {1995-8692}, year = {2008}, language = {en} } @misc{OngKliegl2008, author = {Ong, James Kwan Yau and Kliegl, Reinhold}, title = {Conditional co-occurrence probability acts like frequency in predicting fixation durations}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-56771}, year = {2008}, abstract = {The predictability of an upcoming word has been found to be a useful predictor in eye movement research, but is expensive to collect and subjective in nature. It would be desirable to have other predictors that are easier to collect and objective in nature if these predictors were capable of capturing the information stored in predictability. This paper contributes to this discussion by testing a possible predictor: conditional co-occurrence probability. This measure is a simple statistical representation of the relatedness of the current word to its context, based only on word co-occurrence patterns in data taken from the Internet. In the regression analyses, conditional co-occurrence probability acts like lexical frequency in predicting fixation durations, and its addition does not greatly improve the model fits. We conclude that readers do not seem to use the information contained within conditional co-occurrence probability during reading for meaning, and that similar simple measures of semantic relatedness are unlikely to be able to replace predictability as a predictor for fixation durations. Keywords: Co-occurrence probability, Cloze predictability, frequency, eye movement, fixation duration.}, language = {en} } @article{MoshelZivotofskyLiangetal.2008, author = {Moshel, Shay and Zivotofsky, Ari Z. and Liang, Jin-Rong and Engbert, Ralf and Kurths, J{\"u}rgen and Kliegl, Reinhold and Havlin, Shlomo}, title = {Persistence and phase synchronization properties of fixational eye movement}, issn = {1951-6355}, year = {2008}, abstract = {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.}, language = {en} } @article{LindenbergerBrehmerKliegletal.2008, author = {Lindenberger, Ulman and Brehmer, Y. and Kliegl, Reinhold and Baltes, Paul B.}, title = {Benefits of graphic design expertise in old age : compensatory effects of a graphical lexicon?}, isbn = {978-0-521-87205-8}, year = {2008}, language = {en} } @article{LaubrockEngbertKliegl2008, author = {Laubrock, Jochen and Engbert, Ralf and Kliegl, Reinhold}, title = {Fixational eye movements predict the perceived direction of ambiguous apparent motion}, issn = {1534-7362}, doi = {10.1167/8.14.13}, year = {2008}, abstract = {Neuronal activity in area LIP is correlated with the perceived direction of ambiguous apparent motion (Z. M. Williams, J. C. Elfar, E. N. Eskandar, L. J. Toth, \& J. A. Assad, 2003). Here we show that a similar correlation exists for small eye movements made during fixation. A moving dot grid with superimposed fixation point was presented through an aperture. In a motion discrimination task, unambiguous motion was compared with ambiguous motion obtained by shifting the grid by half of the dot distance. In three experiments we show that (a) microsaccadic inhibition, i.e., a drop in microsaccade frequency precedes reports of perceptual flips, (b) microsaccadic inhibition does not accompany simple response changes, and (c) the direction of microsaccades occurring before motion onset biases the subsequent perception of ambiguous motion. We conclude that microsaccades provide a signal on which perceptual judgments rely in the absence of objective disambiguating stimulus information.}, language = {en} } @article{Kliegl2008, author = {Kliegl, Reinhold}, title = {Publication statistics show collaboration, not competition}, year = {2008}, language = {en} } @misc{Kliegl2008, author = {Kliegl, Reinhold}, title = {Publication Statistics Show Collaboration, Not Competition}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57198}, year = {2008}, language = {en} } @misc{KlannDeliusKauschkeGluecketal.2008, author = {Klann-Delius, Gisela and Kauschke, Christina and Gl{\"u}ck, Christian W. and Schr{\"o}der, Astrid and Lorenz, Antje and Domahs, Frank and Grande, Marion and Domahs, Ulrike and Frankenberg, Jenny v. and Wahl, Michael and De Kok, D{\"o}rte and Stadie, Nicole and Machleb, Franziska and Manz, Katrin and Frank, Ulrike and Sperlich, Kathrin and Vauth, Friederike and Hampel, Pamela and M{\"a}der, Mark and Sticher, Heike and Bethmann, Anja and Fischenich, Andrea and Scheich, Henning and Brechmann, Andr{\´e} and Peschke, Claudia and Ziegler, Wolfram and Kappes, Juliane and Baumg{\"a}rtner, Annette and Sonntag, Kristin and Bartels, Luise and Heide, Judith and Meinunger, Andr{\´e} and Burchert, Frank and Bohn, Christiane and Kliegl, Reinhold and Gottal, Stephanie and Berendes, Karin and Grabherr, Britta and Schneeberg, Jennifer and Wittler, Marion and Ptok, Martin and Sallat, Stephan}, title = {Spektrum Patholinguistik = Schwerpunktthema: der Erwerb von Lexikon und Semantik: Meilensteine, St{\"o}rungen und Therapie ; Tagungsband zum 1. Herbsttreffen Patholinguistik, 24. November 2007}, number = {1}, editor = {Wahl, Michael and Michael, Judith and Hanne, Sandra}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, organization = {Verband f{\"u}r Patholinguistik e. V. (vpl)}, issn = {1869-3822}, doi = {10.25932/publishup-1719}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18688}, year = {2008}, abstract = {Der vorliegende Tagungsband enth{\"a}lt alle Beitr{\"a}ge des 1. Herbsttreffens Patholinguistik, das am 24.11.2007 an der Universit{\"a}t Potsdam stattgefunden hat. Sowohl die drei Hauptvortr{\"a}ge zum Thema „Der Erwerb von Lexikon und Semantik - Meilensteine, St{\"o}rungen und Therapie" als auch die Kurzvortr{\"a}ge promovierter Patholinguisten sind ausf{\"u}hrlich dokumentiert. Außerdem enth{\"a}lt der Tagungsband die Abstracts der pr{\"a}sentierten Poster.}, language = {de} } @article{KinderRolfsKliegl2008, author = {Kinder, Annette and Rolfs, Martin and Kliegl, Reinhold}, title = {Sequence learning at optimal stimulus-response mapping : evidence from a serial reaction-time task}, doi = {10.1080/17470210701557555}, year = {2008}, abstract = {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.}, language = {en} } @article{GoetheOberauerKliegl2008, author = {G{\"o}the, Katrin and Oberauer, Klaus and Kliegl, Reinhold}, title = {Age differences in dual-task performance after practice}, issn = {0882-7974}, doi = {10.1037/0882-7974.22.3.596}, year = {2008}, abstract = {This study investigated whether older adults could acquire the ability to perform 2 cognitive operations in parallel in a paradigm in which young adults had been shown to be able to do so (K. Oberauer \& R. Kliegl, 2004). Twelve young and 12 older adults practiced a numerical and a visuospatial continuous memory updating task in single-task and dual-task conditions for 16 to 24 sessions. After practice, 9 young adults were able to process the 2 tasks without dual- task costs, but none of the older adults had reached the criterion of parallel processing. The results suggest a qualitative difference between young and older adults in how they approach dual-task situations.}, language = {en} } @article{FanselowKlieglSchlesewsky2008, author = {Fanselow, Gisbert and Kliegl, Reinhold and Schlesewsky, Matthias}, title = {Syntactic variation in German wh-questions}, year = {2008}, language = {en} } @article{BostonHaleKliegletal.2008, author = {Boston, Marisa Ferrara and Hale, John and Kliegl, Reinhold and Vasishth, Shravan}, title = {Surprising parser actions and reading difficulty}, year = {2008}, language = {en} } @article{BostonHaleKliegletal.2008, author = {Boston, Marisa Ferrara and Hale, John and Kliegl, Reinhold and Patil, Umesh and Vasishth, Shravan}, title = {Parsing costs as predictors of reading difficulty : an evaluation using the Potsdam Sentence Corpus}, issn = {1995-8692}, year = {2008}, language = {en} } @misc{BostonHaleKliegletal.2008, author = {Boston, Marisa Ferrara and Hale, John and Kliegl, Reinhold and Patil, Umesh and Vasishth, Shravan}, title = {Parsing costs as predictors of reading difficulty: An evaluation using the Potsdam Sentence Corpus}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57139}, year = {2008}, abstract = {The surprisal of a word on a probabilistic grammar constitutes a promising complexity metric for human sentence comprehension difficulty. Using two different grammar types, surprisal is shown to have an effect on fixation durations and regression probabilities in a sample of German readers' eye movements, the Potsdam Sentence Corpus. A linear mixed-effects model was used to quantify the effect of surprisal while taking into account unigram and bigram frequency, word length, and empirically-derived word predictability; the so-called "early" and "late" measures of processing difficulty both showed an effect of surprisal. Surprisal is also shown to have a small but statistically non-significant effect on empirically-derived predictability itself. This work thus demonstrates the importance of including parsing costs as a predictor of comprehension difficulty in models of reading, and suggests that a simple identification of syntactic parsing costs with early measures and late measures with durations of post-syntactic events may be difficult to uphold.}, 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} } @misc{BohnKliegl2008, author = {Bohn, Christiane and Kliegl, Reinhold}, title = {Zur Interaktion von Verarbeitungstiefe und dem Wortvorhersagbarkeitseffekt beim Lesen von S{\"a}tzen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57036}, year = {2008}, language = {de} } @article{BaptistaBohnKliegletal.2008, author = {Baptista, Murilo da Silva and Bohn, Christiane and Kliegl, Reinhold and Engbert, Ralf and Kurths, J{\"u}rgen}, title = {Reconstruction of eye movements during blinks}, issn = {1054-1500}, doi = {10.1063/1.2890843}, year = {2008}, 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} } @misc{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}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57128}, 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} }