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How tight is the link between lexical processing and saccade programs?

Published online by Cambridge University Press:  29 March 2004

Reinhold Kliegl  and
Ralf Engbert
Reinhold Kliegl*
Affiliation:
Department of Psychology, University of Potsdam, Potsdam, 14415, Germanywww.psych.uni-potsdam.de/people/kliegl/
Ralf Engbert*
Affiliation:
Department of Psychology and Center for Dynamics of Complex Systems, University of Potsdam, Potsdam, 14415, Germanywww.agnld.uni-potsdam.de/~ralf/
*
kliegl@rz.uni-potsdam.de
engbert@rz.uni-potsdam.de
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Abstract:

We question the assumption of serial attention shifts and the assumption that saccade programs are initiated or canceled only after stage one of word identification. Evidence: (1) Fixation durations prior to skipped words are not consistently higher compared to those prior to nonskipped words. (2) Attentional modulation of microsaccade rate might occur after early visual processing. Saccades are probably triggered by attentional selection.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 26 , Issue 4 , August 2003 , pp. 491 - 492
Copyright
Copyright © Cambridge University Press 2003

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References

Note

1. We replicated longer fixation durations following a skipped word. Also, skipping saccades started closer to the end of wordn and landed closer to the beginning of wordn+2 compared with matched movements from wordn to wordn+1, as expected from oculomotor control theories.