Regions of response transition of color-coded retinal units and an attempted,analogy to behavioral response transition |
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Authors: | Aleeza Cerf-Beare |
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Institution: | 1. University of Mao, land Baltimore County, 21228, Baltimore, Maryland
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Abstract: | Electrophysiological responses obtained from single color-coded red-green ganglion ceils of the goldfish retina were analyzed in terms of the spectral region within which response transitions occur. The data showed that criteria for response transitions can be characterized by a frequency change with the stipulation that the same number of “on” and “off” spikes occur to the same wavelength(s). The overall spectral band within which response transition occurs is 570–620 nm. The physiological response ranges were compared to psychophysical unique-yellow responses and other “yellow” judgments. The former were displaced towards the longer wavelengths as predicted by the different pigment peaks. The response characteristics of sharp boundaries and relative invariance with intensity changes provided the basis of an analogy of the two response systems. |
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