Counteradaptation, previously demonstrated in connection with adaptation in distance perception, was obtained after exposure
to displaced visual direction. When S adapted to a laterally displacing wedge prism by walking during the exposure period,
there was not only a change in the perceived visual direction, but also a change m the proprioceptively perceived walking
direction. When S adapts to ... [Show full abstract] lateral displacement of the visual direction by looking at his stationary or his moving arm, visual
adaptation is obtained in the latter, but not in the former, case (Held & Hein, 1958). We obtained a change in the proprioceptively
perceived position of the arm when it was stationary during the exposure period, a condition which had not yielded visual
adaptation, and a much smaller, not significant, change in the felt position in the case of the actively moved arm. In the
present experiments, changes in proprioceptively perceived direction or position amounted to counteradaptation.