Publication Date:
1991-08-02
Description:
Eye movements that follow a target (pursuit eye movements) facilitate high acuity visual perception of moving targets by transforming visual motion inputs into motor commands that match eye motion to target motion. The performance of pursuit eye movements requires the cerebellar flocculus, which processes both visual motion and oculomotor signals. Electrophysiological recordings from floccular Purkinje cells have allowed the identification of their firing patterns during generation of the image velocity and image acceleration signals used for pursuit. Analysis with a method based on a behavioral model converted the time-varying spike trains of floccular Purkinje cells into a description of the firing rate contributed by three visual motion signals and one oculomotor input. The flocculus encodes all the signals needed to guide pursuit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krauzlis, R J -- Lisberger, S G -- New York, N.Y. -- Science. 1991 Aug 2;253(5019):568-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, W. M. Keck Foundation Center for Integrative Neurosciences, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1907026" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Cerebellum/*physiology
;
Electrophysiology
;
Evoked Potentials, Visual
;
*Eye Movements
;
Haplorhini
;
Models, Neurological
;
*Motion Perception
;
Purkinje Cells/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
