生物运动的肢体衔接可诱发自我运动时的虚幻运动知觉

IF 2.4 4区 心理学 Q2 PSYCHOLOGY, EXPERIMENTAL
Anna-Gesina Hülemeier, Markus Lappe
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引用次数: 0

摘要

当一个人走向一群行人时,在控制自身运动的同时处理他们的生物运动是一项困难的感知任务。步行者的肢体衔接与步行者在场景中的平移自然地结合在一起,可以将自我运动产生的光流与其他行人的生物运动分离开来。最近的研究表明,如果肢体衔接和平移不匹配,例如原地行走时,自我运动感知就会出现偏差。这种偏差可能反映了行人人群通过肢体衔接而产生的虚幻运动。为了研究这一假设,我们向观察者展示了一个模拟自我运动的场景,观察者正对着一群横向移动的点光步行者,并要求观察者报告感知到的人群横向速度。为了研究人群速度感知对生物运动的依赖性,我们还加入了对步行者的点进行空间干扰以破坏身体形态和肢体衔接的条件。我们观察到虚幻的人群速度知觉与生物运动的衔接率有关。扰乱的步行者也会产生幻觉运动,但与衔接率无关。我们的结论是,肢体衔接会诱发对人群运动的感知,这种感知可用于解释面向人群的自我运动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Limb articulation of biological motion can induce illusory motion perception during self-motion
When one walks toward a crowd of pedestrians, dealing with their biological motion while controlling one's own self-motion is a difficult perceptual task. Limb articulation of a walker is naturally coupled to the walker's translation through the scene and allows the separation of optic flow generated by self-motion from the biological motion of other pedestrians. Recent research has shown that if limb articulation and translation mismatch, such as for walking in place, self-motion perception becomes biased. This bias may reflect an illusory motion attributed to the pedestrian crowd from the articulation of their limbs. To investigate this hypothesis, we presented observers with a simulation of forward self-motion toward a laterally moving crowd of point-light walkers and asked them to report the perceived lateral speed of the crowd. To investigate the dependence of the crowd speed percept on biological motion, we also included conditions in which the points of the walker were spatially scrambled to destroy body form and limb articulation. We observed illusory crowd speed percepts that were related to the articulation rate of the biological motion. Scrambled walkers also produced illusory motion but it was not related to articulation rate. We conclude that limb articulation induces percepts of crowd motion that can be used for interpreting self-motion toward crowds.
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来源期刊
I-Perception
I-Perception PSYCHOLOGY, EXPERIMENTAL-
CiteScore
4.30
自引率
5.30%
发文量
39
审稿时长
12 weeks
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