Fig. 1.

Characteristics of the stimulus display and stimuli. (A) Illustration of the display. Black circle shows target, white circles show other possible target locations. (B) Munsell codes of the stimuli; stimuli varied in hue at constant value and chroma. Hue separations were five Munsell hue units apart. The target was either in the same color category as the background (5BG and 10BG, both green) or in the adjacent category (5BG and 10G, green and blue). The dashed line indicates the category boundary.