Aftereffect of induced rotation: number of pattern elements and area of pattern in inducing stimulus.

Previous research has suggested that aftereffect of induced rotation can be longer when the number of pattern elements in the inducing stimulus is greater. This was explained by the amount of shearing between pattern elements of inducing and static stimuli. However, the results might also be explained by the greater area occupied by a greater number of pattern elements. The present experiment used three inducing stimuli, in which number of pattern elements and area of pattern were varied independently, to test between these hypotheses. The former was corroborated and the latter refuted.