title: Eye movements and brain electric potentials during reading.
abstract: The development of theories and computational models of reading requires an understanding of processing constraints, in particular of timelines related to word recognition and oculomotor control. Timelines of word recognition are usually determined with event-related potentials (ERPs) recorded under conditions of serial visual presentation (SVP) of words; timelines of oculomotor control are derived from parameters of eye movements (EMs) during natural reading. We describe two strategies to integrate these approaches. One is to collect ERPs and EMs in separate SVP and natural reading experiments for the same experimental material (but different subjects). The other strategy is to co-register EMs and ERPs during natural reading from the same subjects. Both strategies yield data that allow us to determine how lexical properties influence ERPs (e.g., the N400 component) and EMs (e.g., fixation durations) across neighboring words. We review our recent research on the effects of frequency and predictability of words on both EM and ERP measures with reference to current models of eye-movement control during reading. Results are in support of the proposition that lexical access is distributed across several fixations and across brain-electric potentials measured on neighboring words.
authors.affiliation: Department of Psychology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany. kliegl@uni-potsdam.de
authors.forename: Reinhold
authors.initials: R
authors.lastname: Kliegl
authors.forename: Michael
authors.initials: M
authors.lastname: Dambacher
authors.forename: Olaf
authors.initials: O
authors.lastname: Dimigen
authors.forename: Arthur M
authors.initials: AM
authors.lastname: Jacobs
authors.forename: Werner
authors.initials: W
authors.lastname: Sommer
mesh_terms: D001288:Attention / Q000502:physiology; D001921:Brain / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005133:Eye Movements / Q000502:physiology*; D006801:Humans; D011932:Reading