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Signal processing related to the vestibulo-ocular reflex during combined angular rotation and linear translation of the headThe contributions of vestibular nerve afferents and central vestibular pathways to the angular (AVOR) and linear (LVOR) vestibulo-ocular reflex were studied in squirrel monkeys during fixation of near and far targets. Irregular vestibular afferents did not appear to be necessary for the LVOR, since when they were selectively silenced with galvanic currents the LVOR was essentially unaffected during both far- and near-target viewing. The linear translation signals generated by secondary AVOR neurons in the vestibular nuclei were, on average, in phase with head velocity, inversely related to viewing distance, and were nearly as strong as AVOR-related signals. We suggest that spatial-temporal transformation of linear head translation signals to angular eye velocity commands is accomplished primarily by the addition of viewing distance multiplied, centrally integrated, otolith regular afferent signals to angular VOR pathways.
Document ID
20040141927
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
McCrea, R. A.
(University of Chicago Illinois 60637, United States)
Chen-Huang, C.
Peterson, B. W.
Date Acquired
August 22, 2013
Publication Date
May 28, 1999
Publication Information
Publication: Annals of the New York Academy of Sciences
Volume: 871
ISSN: 0077-8923
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
Non-NASA Center

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