Bistable Alternation of Point-Light Biological Motion

摘要：

The facing-in-depth of point-light biological motion is ambiguous: the frontal and back view look the same. However, since earlier studies found a very strong perceptual bias in point-light biological motion, it is unknown whether it evokes an alternating (bistable) percept. In the present study, naive, untrained observers viewed point-light stimuli in half-profile view. All participants experienced spontaneous flipping of the orientation-in-depth, both for biological motion and necker cube displays. The number of perceptual flips was lower for the rocking cube than for the static one; and higher for biological motion than for rocking cubes. Contrary to earlier findings the participants did not have a perceptual bias. We conclude that ambiguous biological motion does evoke a bistable percept.

关键词： Biological motion Depth perception Perceptual bistability Psychophysics

作者: Marc H. E. de Lussanet Markus Lappe

作者单位: Allgemeine Psychologie, Psychologisches Institut II, Westfalische Wilhelms-Universitat, Miinster,Germany

会议类型: 国际会议

会议名称: The Second International Conference on Cognitive Neurodynamics--2009(第二届国际认知神经动力学会议)

会议地点: 杭州

会议语种:英文

页码: 415-420

在线出版日期: 2009-11-15（万方平台首次上网日期，不代表论文的发表时间）