Motion speed modulates walking direction discrimination: The role of the feet in biological motion perception |
| |
Authors: | Peng Cai XiaoYing Yang Lin Chen Yi Jiang |
| |
Institution: | 1.State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics,Chinese Academy of Sciences,Beijing,China;2.Key Laboratory of Mental Health, Institute of Psychology,Chinese Academy of Sciences,Beijing,China;3.Graduate University of Chinese Academy of Sciences,Beijing,China |
| |
Abstract: | The human visual system is tuned to the motions of biological entities, which provide potentially vital information for survival.
The current study examines the interplay between motion speed and motion direction perception. Following a brief presentation
of a point-light walker walking straight ahead or slightly leftward or rightward, observers were asked to quickly judge the
walking direction (left or right). Participants showed better direction discrimination when the walker walked at a fast pace
compared to a natural or slow pace, and this was not simply due to a difference in motion cycles. Moreover, walking direction
sensitivity could be enhanced by increasing the feet motion speed alone, so long as the direction of feet movement was consistent
with that of the other body parts. These findings demonstrate that our perception of walking direction is influenced by local
motion speed, and highlight the role of the feet in biological motion perception. |
| |
Keywords: | biological motion motion speed walking direction discrimination |
本文献已被 维普 SpringerLink 等数据库收录! |
|