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Temporal integration in human vision and the opponent-color systems. 1987

M Mitsuboshi, and M Funakawa, and Y Kawabata, and T S Aiba
Department of Behavioral Science, Hokkaido University, Sapporo, Japan.

The present study demonstrated that the temporal integration time (t.i.t.) could be prolonged even if the background energy was increased, provided that the background consisted of the colors opponent to each other. This was found, more or less, irrespective of the test stimulus size. These results suggest that the t.i.t. is not determined solely at receptor sites in the visual system, but that the chromatically-opponent systems are heavily involved. Mechanisms based upon a two-sites adaptation with one detection pathway model were briefly discussed.

UI MeSH Term Description Entries
D008297 Male Males
D003118 Color Perception Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary. Color Perceptions,Perception, Color,Perceptions, Color
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000221 Adaptation, Ocular The adjustment of the eye to variations in the intensity of light. Light adaptation is the adjustment of the eye when the light threshold is increased; DARK ADAPTATION when the light is greatly reduced. (From Cline et al., Dictionary of Visual Science, 4th ed) Light Adaptation,Adaptation, Light,Adaptations, Light,Adaptations, Ocular,Light Adaptations,Ocular Adaptation,Ocular Adaptations
D012684 Sensory Thresholds The minimum amount of stimulus energy necessary to elicit a sensory response. Sensory Threshold,Threshold, Sensory,Thresholds, Sensory
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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