Binocular interactions in random chromatic changes at isoluminance.
To examine the type of chromatic interactions at isoluminance in the phenomenon of binocular vision, I have determined simple visual reaction times (VRT) under three observational conditions (monocular left, monocular right, and binocular) for different chromatic stimuli along random color axes at isoluminance (simultaneous L-, M-, and S-cone variations). Upper and lower boundaries of probability summation as well as the binocular capacity coefficient were estimated with observed distributions of reaction times. The results were not consistent with the notion of independent chromatic channels between eyes, suggesting the existence of excitatory and inhibitory binocular interactions at suprathreshold isoluminance conditions.
Universidad Miguel Hernández, Avenida del Ferrocarril s/n, Elche, E-03202, Spain. jmanuel@umh.es
José M
JM
Medina
D003116:Color; D003118:Color Perception / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time / Q000502:physiology*; D013269:Stochastic Processes; D015348:Vision, Binocular / Q000502:physiology*