Synchronizing timelines: Relations between fixation durations and N400 amplitudes during sentence reading

We examined relations between eye movements (single-fixation durations) and RSVP-based event-related potentials (ERPs; N400’s) 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.

Metadaten
Author details:	Michael Dambacher, Reinhold Kliegl ORCiD GND
URN:	urn:nbn:de:kobv:517-opus-57212
Publication series (Volume number):	Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe (paper 262)
Publication type:	Postprint
Language:	English
Publication year:	2007
Publishing institution:	Universität Potsdam
Release date:	2011/12/13
Tag:	N400; event-related potentials (ERP); eye-movements; fixation durations; path analysis; rapid serial visual presentation (RSVP); sentence reading
Source:	Brain Research. - ISSN 0006-8993. - 1155 (2007), S. 147-162
Organizational units:	Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Psychologie
DDC classification:	4 Sprache / 40 Sprache / 400 Sprache
Institution name at the time of the publication:	Humanwissenschaftliche Fakultät / Institut für Psychologie
License (German):	Keine öffentliche Lizenz: Unter Urheberrechtsschutz
External remark:	This is a preprint of the article: Dambacher, M. ; Kliegl, R. (2007): Synchronizing timelines: Relations between fixation durations and N400 amplitudes during sentence reading. first published in: Brain Research, 1155, 147-162. DOI: doi:10.1016/j.brainres.2007.04.027 Copyright © 2007 Elsevier B.V. All rights reserved.