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Dynamic modulation of ocular orientation during visually guided saccades and smooth-pursuit eye movementsRotational disturbances of the head about an off-vertical yaw axis induce a complex vestibuloocular reflex pattern that reflects the brain's estimate of head angular velocity as well as its estimate of instantaneous head orientation (at a reduced scale) in space coordinates. We show that semicircular canal and otolith inputs modulate torsional and, to a certain extent, also vertical ocular orientation of visually guided saccades and smooth-pursuit eye movements in a similar manner as during off-vertical axis rotations in complete darkness. It is suggested that this graviceptive control of eye orientation facilitates rapid visual spatial orientation during motion.
Document ID
20040087448
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hess, Bernhard J M.
(Zurich University Hospital Switzerland)
Angelaki, Dora E.
Date Acquired
August 21, 2013
Publication Date
October 1, 2003
Publication Information
Publication: Annals of the New York Academy of Sciences
Volume: 1004
ISSN: 0077-8923
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: DC-04260
CONTRACT_GRANT: EY-12814
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Program Fundamental Space Biology
NASA Discipline Neuroscience

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