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Proceedings Paper

Simulation of parvocellular demultiplexing
Author(s): Eugenio Martinez-Uriegas
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Paper Abstract

A massively parallel wiring of chromatic and achromatic receptive fields, of the type presumably present at some level in the visual cortex, is simulated starting from pseudo-random L/M cone lattices. It is shown that there is considerable variability in the relative L/M cone input to achromatic processes but there is also a intrinsic invariant in the chromatic decoding. With the usual caution required to link simple models derived from first principles to the behavior of complex biological systems, the results are useful to understand, on one hand, the variability of luminous spectral sensitivity for achromatic visual tasks under different spatial conditions, and on the other, the observed stability of unique yellow across individuals with normal color vision who nevertheless have very different proportion of L to M cones. The results are also consistent with those given by non-random non-massive demultiplexing examples previously reported.

Paper Details

Date Published: 1 June 1991
PDF: 14 pages
Proc. SPIE 1453, Human Vision, Visual Processing, and Digital Display II, (1 June 1991); doi: 10.1117/12.44365
Show Author Affiliations
Eugenio Martinez-Uriegas, SRI International (United States)


Published in SPIE Proceedings Vol. 1453:
Human Vision, Visual Processing, and Digital Display II
Bernice E. Rogowitz; Michael H. Brill; Jan P. Allebach, Editor(s)

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