| On the mechanisms underlying appearance of responses to movement, directional sensitivity and velocity tuning of the cat's striate cortical neurons. | |
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MedLine Citation:
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PMID: 4041489 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The responses to moving and stationary stimuli of 27 cat's striate cortical units were studied. Two stationary light bars located in different parts of the receptive field were used. The order of presentation and the time-interval between the stimuli varied; so, the presentation of a pair of stationary stimuli was an analogue of a moving stimulus. It was shown that responses occurred in neurons previously unresponsive to stationary stimuli when two stationary stimuli were presented successively in certain order. In the direction-sensitive units an asymmetry of the temporal course of the inhibitory processes was observed. The inhibitory zone located on the side of the preferred direction of movement was characterized by an early inhibitory phase followed by a phase of disinhibition and by a second inhibitory phase. For the inhibitory zone located on the side of the null direction no disinhibitory phase was demonstrated. The significance of the spatial and temporal characteristics of the receptive field for the appearance of responses to movement, the directional sensitivity and the velocity tuning in striate neurons is discussed. |
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Authors:
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L Vitanova; V Glezer; V Gauselman |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Biological cybernetics Volume: 52 ISSN: 0340-1200 ISO Abbreviation: Biol Cybern Publication Date: 1985 |
Date Detail:
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Created Date: 1985-10-25 Completed Date: 1985-10-25 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7502533 Medline TA: Biol Cybern Country: GERMANY, WEST |
Other Details:
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Languages: eng Pagination: 237-46 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cats Movement Neurons / physiology* Photic Stimulation Space Perception Visual Cortex / physiology* Visual Perception* |
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