Shortened Perception of Amplitude in Reciprocating Motion

Abstract

Observers adjusted the vanishing locations of the repeatedly unidirectional motion stimulus. As a result, Fröhlich effect can be observed at the onset but the RM (representational momentum) effect cannot be observed at the offset. In a similar way, it was found that the amplitude of reciprocating motion appears shorter than the physical length. It is suggested that our visual system correct the shifted onset position caused by Fröhlich effect and the offset position in reciprocating motion spatiotemporally so that the smooth reciprocating motion appears with shorter amplitude.