PMID: 7334428Nov 1, 1981Paper

Contrast gain measurements and the transient/sustained

Journal of the Optical Society of America
C A Burbeck, D H Kelly

Abstract

We measure threshold for a vertical test grating superimposed on a fixed-contrast horizontal background grating of the same spatial and temporal frequency. The rate of change of this threshold with increasing contrast of the background grating is a measure of the contrast gain of the responding mechanism. Large slopes (high contrast gains) occur when spatial frequency is low and temporal frequency is high; small slopes (low contrast gains) occur when both spatial and temporal frequencies are low and when spatial frequency is high. This division of the spatiotemporal frequency domain into low- and high-gain regions is consistent with the transient/sustained dichotomy found in previous psychophysical studies. Furthermore, our results suggest that the mechanism responsible for detecting low spatial frequencies has a gain characteristic similar to that of cat retina Y cells and that the mechanism responsible for detecting high spatial frequencies has a gain characteristic similar to that of cat retina X cells, as found by Shapley and Victor [J. Physiol. (London) 285, 275-298 (1978)].

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Citations

Dec 1, 2006·Proceedings. Biological Sciences·Tim S Meese, David J Holmes
Jul 16, 2009·Visual Neuroscience·Alexander C SchützKarl R Gegenfurtner
Jul 31, 2010·Nutritional Neuroscience·Natanael Antonio Dos Santos, Caroline Costa Gomes Alencar
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May 1, 1987·Perception & Psychophysics·E Wong, N Weisstein
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Jun 1, 1984·Perception & Psychophysics·M Green
Jan 1, 1983·Perception & Psychophysics·F L Kitterle, B L Beard
Mar 9, 1999·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Z L Lu, B A Dosher
Jul 19, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·H P Snippe, J H van Hateren
Jul 1, 1990·Journal of Cognitive Neuroscience·H C HughesP A Reuter-Lorenz
Sep 1, 1986·Journal of the Optical Society of America. A, Optics and Image Science·R BlakeH R Wilson
Jan 1, 1996·Perception·Y ChenL J Frishman
Dec 1, 1996·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Z L Lu, G Sperling
May 5, 2000·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·A M McKendrickA J Vingrys
Feb 1, 1984·Journal of the Optical Society of America. A, Optics and Image Science·G C Phillips, H R Wilson
Jan 1, 1988·Perception·D L Halpern, R R Blake

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