小橋 昭彦 2006年2月1日

Words help us see and talk
In each experimental trial of the present study, participants saw a ring of colored squares. All the squares were of exactly the same color, except for an “odd-man-out” of a different color. The odd-man-out appeared in either the right or the left half of the circle, and participants were asked to indicate which side of the circle the odd-man-out was on, by making a keyboard response. Critically, the color of this odd-man-out had either the same name as the other squares (e.g. a shade of “green”, while the others were all a different shade of “green”), or a different name (e.g. a shade of “blue”, while the others were all a shade of “green”). The researchers found that participants responded more quickly when the color of the odd-man-out had a different name than the color of the other squares ? as if the linguistic difference had heightened the perceptual difference ? but this only occurred if the odd-man-out was in the right half of the visual field, and not when it was in the left half. This was the predicted pattern.

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