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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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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2019. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 15 October 2019

Decoding of Optic Flow by the Primate Optokinetic System

Decoding of Optic Flow by the Primate Optokinetic System

Chapter:
(p.471) Chapter 74 Decoding of Optic Flow by the Primate Optokinetic System
Source:
The Head-Neck Sensory Motor System
Author(s):

Frederick A. Miles

Urs Schwarz

Claudio Busettini

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195068207.003.0074

The major concern in this chapter is the review of the recent argument of Miles which explains that the visual backup to the two labyrinth reflexes (rotational vestibulo-ocular reflex (RVOR) and translational vestibulo-ocular reflex (TVOR)) is provided by two individual tracking systems. One tracking system is the classical optokinetic system (OKR), which provides backup to canal-ocular reflexes and mainly deals with rotational disturbances of gaze. The other one provides the backup to otolith-ocular reflexes and mainly deals with translational disturbances of gaze. This chapter also offers some cautionary words concerning the decomposition of optic flow into rotational and translational components. It is suggested that the pursuit system be deployed by some attentional focusing mechanism.

Keywords:   optokinetic system, otolith-ocular reflexes, gaze, attentional focusing mechanism, decomposition, components, visual backup

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