Aftereffects of saccades explored in a dynamic neural field model of the superior colliculus

Zhiguo Wang, Jason Satel, Thomas P. Trappenberg, Raymond M. Klein

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Abstract

When viewing a scene or searching for a target, an observer usually makes a series of saccades that quickly shift the orientation of the eyes. The present study explored how one saccade affects subsequent saccades within a dynamic neural field model of the superior colliculus (SC). The SC contains an oculocentric motor map that encodes the vector of saccades and remaps to the new fixation location after each saccade. Our simulations demonstrated that the observation that saccades which reverse their vectors are slower to initiate than those which repeat vectors can be explained by the afore-mentioned remapping process and the internal dynamics of the SC. How this finding connects to the study of inhibition of return is discussed and suggestions for future studies are presented.
Original languageEnglish
Pages (from-to)1-1-1-16
Number of pages16
JournalJournal of Eye Movement Research
Volume4
Issue number2
Publication statusPublished - 2011
Externally publishedYes

Bibliographical note

Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • saccade
  • dynamic neural field model
  • inhibition of return
  • superior colliculus

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