Binocular summation of chromatic changes as measured by visual reaction time |
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Authors: | Jiménez J R Medina J M Jiménez del Barco L Díaz J A |
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Affiliation: | Departamento de Optica, Facultad de Ciencias, Universidad de Granada, Spain. jrjimene@ugr.es |
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Abstract: | We determined visual reaction times to monocular and binocular changes in the luminance of isochromatic stimuli and to monocular and binocular changes in the color of isoluminant stimuli. Two isoluminant color changes were tested: chromatic variations along the red-green axis of Boynton's (1986) two-stage color vision model and chromatic variations along the yellow-blue axis of the same model. The results indicate a greater degree of binocular summation for luminance change than for color change. This result was largely independent of the motor component of reaction time. |
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