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  Contrast sensitivity and retinal ganglion cell responses in the primate.

Lee, B. B., & Sun, H. (2011). Contrast sensitivity and retinal ganglion cell responses in the primate. Psychology and Neuroscience, 4(1), 11-18. doi:10.3922/j.psns.2011.1.003.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0025-78A2-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-CC57-4
Genre: Journal Article

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2116567.pdf (Publisher version), 494KB
 
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 Creators:
Lee, B. B.1, Author              
Sun, H., Author
Affiliations:
1Emeritus Group of Membrane Biophysics, MPI for Biophysical Chemistry, Max Planck Society, ou_1571137              

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Free keywords: contrast sensitivity, primate, retinal ganglion cells, eye movements, contrast detection
 Abstract: Human contrast sensitivity is considered in relation to the responses delivered by retinal ganglion cells of the primate to luminance and chromatic contrast. At different temporal frequencies, response amplitude relative to response variability determines the limit to sensitivity of a single ganglion cell. This can be related to specific models of central detection mechanisms. Both for luminance and chromatic contrast, psychophysical sensitivity to temporal modulation can be achieved by summation of activity of just a few cells that provide input to a detection mechanism. This analysis is then extended to a spatial context. Several sets of data indicate that, in spatial terms, detection mechanisms are of limited spatial extent, and that, at least in the case of luminance patterns, eye movements play a critical role in contrast detection.

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Language(s): eng - English
 Dates: 2011-06-15
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3922/j.psns.2011.1.003
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Title: Psychology and Neuroscience
Source Genre: Journal
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Pages: - Volume / Issue: 4 (1) Sequence Number: - Start / End Page: 11 - 18 Identifier: -