Publication Date:
2002-03-30
Description:
In normal vision our gaze leaps from detail to detail, resulting in rapid image motion across the retina. Yet we are unaware of such motion, a phenomenon known as saccadic suppression. We recorded neural activity in the middle temporal and middle superior temporal cortical areas during saccades and identical image motion under passive viewing conditions. Some neurons were selectively silenced during saccadic image motion, but responded well to identical external image motion. In addition, a subpopulation of neurons reversed their preferred direction of motion during saccades. Consequently, oppositely directed motion signals annul one another, and motion percepts are suppressed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thiele, A -- Henning, P -- Kubischik, M -- Hoffmann, K-P -- New York, N.Y. -- Science. 2002 Mar 29;295(5564):2460-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Allgemeine Zoologie und Neurobiologie, Ruhr-University Bochum, Bochum, 44780, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11923539" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Macaca mulatta
;
Motion Perception
;
Neurons/*physiology
;
*Perceptual Masking
;
Retina/physiology
;
Saccades/*physiology
;
Temporal Lobe/*physiology
;
Visual Pathways
;
*Visual Perception
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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