Tilt aftereffects in central and peripheral vision.

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Abstract
In 2 experiments with 10 and 8 adult Ss it was found that inspection of a tilted line in 1/2 of the visual field has no influence on subsequent judgments of the orientation of a line displayed in the opposite 1/2. Tilt aftereffects were found, however, when the inspection and test contours coincided spatially. The magnitude and direction of these aftereffects were dependent on the tilt of the inspection stimulus, and different angular functions were obtained in central and peripheral vision. The bearing of results on 2 explanations of negative aftereffects (normalization theory and neural enhancement theory) is discussed. (17 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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