The After-Effect of Movement in the Sense of Touch

Abstract

In his study On After-Effect of Seen Movement Wohlgemuth reported a series of 34 experiments, last one of which was conducted to see whether an after-effect of movement existed in sense of touch similar to that in sense of sight.1 The result was negative, his conclusion being that under given experimental conditions, no analogous aftereffect of movement exists in case of touch.2 In theoretical sections which follow experimental, this conclusion was further qualified: the negative result of this experiment must not be considered as final; some observations made since then show me that subject is worthy of further investigation.3 The present paper reports a series of experiments, which were undertaken in interests of this problem during Summer Term of 192I. Observers.-The Os were Miss Catherine Braddock (B), fellow in psychology; Dr. Josephine Gleason (G), assistant professor of psychology at Vassar College; Dr. Karl M. Dallenbach (D), and author (T). When author observed, Miss Elizabeth Amen, graduate student in psychology acted as E. All Os were trained in introspection. They observed an hour a day, five days a week, and, in so far as it was possible, at same hour every day. B and G worked without knowledge of problem.