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The Head-Neck Sensory Motor System$
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Alain Berthoz, Werner Graf, and P. P. Vidal

Print publication date: 1992

Print ISBN-13: 9780195068207

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195068207.001.0001

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Modeling Head-Free Gaze Control in the Cat

Modeling Head-Free Gaze Control in the Cat

Chapter:
(p.520) Chapter 82 Modeling Head-Free Gaze Control in the Cat
Source:
The Head-Neck Sensory Motor System
Author(s):

Henrietta L. Galiana

Daniel Guitton

and Douglas P. Munoz

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195068207.003.0082

Two primary issues are being studied in relation to the control of coordinated eye and head movements. The first one is the possible interaction of the vestibulo-ocular reflex (VOR) during the saccadic component of a gaze shift and the second one is the possible coordination of eye and head trajectors through shared access to a common premotor drive. This chapter presents an alternate view of central eye-head coordination, using global gaze error as a precursor of motoneural drives. The model of eye-head coupling is also conceptually justified in this chapter. Some simulation examples are presented, including the gaze shifts within and beyond the oculomotor range and coupling of eye and head trajectories.

Keywords:   head-free gaze control, vestibulo-ocular reflex, oculomotor range, interaction, trajectories, premotor drive

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