Spatial adaptation and aftereffect with optically transformed vision: Effects of active and passive responding and the relationship between test and exposure responses.

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Abstract
Adaptation and after -effect to prism-induced spatial transformation of vision has been investigated in 2 experiments and a control series. In Experiment I kinesthetic-muscular responses without vision preceded and followed similar responses with prismatically transformed vision during an exposure phase, and in Experiment n a passive and active swinging movement of the arm was introduced during exposure. In the 4 control experiments responses were made without transformed vision during exposure. Significant aftereffects occurred in Experiments I and II but in neither did they vary in magnitude as a function of either passive or active responses during exposure, relation of test to exposure responses, or to type of response made during the test phase. No significant effects occurred in the control experiments. The significantly smaller mean aftereffect for Experiment II suggested that aftereffects from spatially transformed vision are largely a function of the spatial relationships between test and exposure responses.

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