@article{ref1,
title="Goal-directed vestibulo-ocular function in man: gaze stabilization by slow-phase and saccadic eye movements",
journal="Experimental brain research",
year="1988",
author="Segal, B. N. and Katsarkas, A.",
volume="70",
number="1",
pages="26-32",
abstract="Vestibular function was examined during passive head movements having profiles that approximated low-to-intermediate range of natural self-generated movements (10-220 degrees/s peak velocity, about 0.5 s duration). A seated subject looked at a point target on the wall, the lights were extinguished and the chair was briefly turned while the subject tried to &quot;look&quot; at the just-viewed point. The chair was stopped, the lights were turned on again and the target was re-fixated, if necessary. Ocular stabilization was characterized (1) by &quot;net stabilization&quot; that was due to the combined effects of both slow-phase and rapid (saccadic or quick-phase) eye movements, (2) by &quot;cumulative-slow-phase stabilization&quot; that was due to slow-phase eye movements, and (3) by &quot;cumulative-saccadic stabilization&quot; that was due to effects of all rapid eye movements. It was found that both slow-phase and saccadic eye movements tended to keep the eyes on the actual unseen target. During repeatedly applied head movements, net and cumulative-slow-phase stabilization tended to be almost perfect. However, the average magnitude of the error in net stabilization (i.e., deviation from perfection) was always less than the corresponding error in slow-phase stabilization. This occurred because in a given turn, saccadic movements tended to supplement deficient slow-phase movements and to decrement excessive slow-phases. In 4 of 5 subjects, cumulative-saccadic stabilization tended to equal the error in cumulative-slow-phase stabilization. All results were unaffected by head velocities up to +/- 220 degrees/s. It was concluded that these saccades tended to stabilize gaze (eye + head) in space during head movements in total darkness.<p /><p>Language: en</p>",
language="en",
issn="0014-4819",
doi="",
url="http://dx.doi.org/"
}