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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1985-4-26
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pubmed:abstractText |
Current injected into horizontal-cell somas and axons produced transient (on-off) depolarizations from type-C cells (commonly known as transient amacrine cells) similar to those produced by light. Both the light- and current-induced responses had very small linear components and nonlinear components as represented by the second-order kernels, which reproduced the cell's response with a reasonable degree of accuracy. The second-order kernels were well defined and stereotyped. The quadratic nature of the nonlinear component is reflected in the frequency doubling response as well as the very steep input-output relationship of the cell. Type-C cell's responses evoked by light and current differed in a subtle but distinct fashion, and this difference appeared in the signature of the second-order kernels. The light-produced kernels had two diagonal positive peaks and off-diagonal valleys ("four-eye" structure), whereas the current-produced kernels had a single on-diagonal positive peak with off-diagonal negative valleys ("three-eye" structure). The difference in the kernel configuration was reflected in the cell's step-evoked response. Some type-C cells produced faster responses whereas others produced slower responses, whether evoked by light or by current. Our past and present results show that type-C cells produce a very nonlinear response that is not necessarily complex.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0022-3077
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
53
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
411-28
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:2984349-Animals,
pubmed-meshheading:2984349-Electric Stimulation,
pubmed-meshheading:2984349-Evoked Potentials, Visual,
pubmed-meshheading:2984349-Fishes,
pubmed-meshheading:2984349-Interneurons,
pubmed-meshheading:2984349-Light,
pubmed-meshheading:2984349-Neurons,
pubmed-meshheading:2984349-Retina,
pubmed-meshheading:2984349-Synaptic Transmission,
pubmed-meshheading:2984349-Vision, Ocular
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pubmed:year |
1985
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pubmed:articleTitle |
Signal transmission in the catfish retina. III. Transmission to type-C cell.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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