| Simple cells in cat striate cortex: responses to stationary flashing and to moving light bars. | |
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MedLine Citation:
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PMID: 4043273 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Cells in the simple family respond to a moving light bar with an average response histogram that is most commonly unimodal (single peak: encounter frequency, 64%) and less commonly bimodal (33%) or trimodal (3%). The mean width of the principal response peak given by hypercomplex I cells is narrower than that of simple cells and they have a lower mean optimal stimulus velocity. In a series of 74 cells (simple, 47; hypercomplex I, 27), detailed comparison of the spatial relations between the response peaks to the moving bar and the subregions to the stationary flashing bar led to the concept of a boundary response. The term "boundary response" refers to an isolated response peak occurring as a moving light bar leaves an OFF subregion that is the last in the sequence of subregions traversed by the bar. The presence of a boundary response leads to an apparent discrepancy between the number of response peaks to a moving light bar and the number of ON subregions in the static-field plot. The boundary response is necessarily completely direction selective. A detailed comparison of the properties of cells as revealed by hand and quantitative methods showed a very good agreement between the two methods in respect to the assignment of cells to the simple, B- and complex cell families. There were, however, serious discrepancies in respect to the receptive field organization of cells in the simple family.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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R M Camarda; E Peterhans; P O Bishop |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale Volume: 60 ISSN: 0014-4819 ISO Abbreviation: Exp Brain Res Publication Date: 1985 |
Date Detail:
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Created Date: 1985-11-21 Completed Date: 1985-11-21 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0043312 Medline TA: Exp Brain Res Country: GERMANY, WEST |
Other Details:
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Languages: eng Pagination: 151-8 Citation Subset: IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cats Evoked Potentials, Visual Motion Perception / physiology Psychophysics Visual Cortex / cytology, physiology* Visual Fields Visual Perception / physiology* |
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