Hemispheric asymmetry in reaction time to color stimuli.
The simple detection of colored stimuli in the right, center, and left visual fields was examined. 10 male subjects were used in a reaction time paradigm with color (red, green, or blue), field, and hand as independent variables. A significantly faster RT to stimuli presented in the left visual field was observed, and further the left visual field-left hand combination was the fastest of all the combinations of visual-field x hand. A significant interaction of color x field suggested that red may be processed on a higher order level even in a simple detection task.
D000293:Adolescent; D000328:Adult; D003118:Color Perception; D004192:Discrimination, Psychological; D004292:Dominance, Cerebral; D007839:Functional Laterality; D006801:Humans; D008297:Male; D011930:Reaction Time; D014794:Visual Fields