Size Adaptation: A New Aftereffect

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Science  10 Oct 1969:
Vol. 166, Issue 3902, pp. 245-247
DOI: 10.1126/science.166.3902.245


If, after prolonged observation of a striped pattern, one views a grating of the same orientation with somewhat narrower bars, then the bars seem even thinner than in fact they are. Broader bars seem broader still. This finding implies a system of size-detecting channels in humnan vision. The phenomenon may underlie many of the classical figural aftereffects.

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