Color stimuli (IMAGE)

NIH/National Eye Institute

Color stimuli

Caption

Colored stimuli in yellow (top) and blue (bottom). Light luminance level versions are on the left; dark versions on the right. Volunteers used a variety of names for the upper stimuli, such as "yellow" for the left and "brown" for the right, but consistently used "blue" for both the lower stimuli.

Credit

Bevil Conway, Ph.D., National Eye Institute

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