Troje Nikolaus F, Chang Dorita H F
Department of Biology & Centre for Vision Science, York University.
Department of Psychology, The University of Hong Kong.
Curr Dir Psychol Sci. 2023 Feb;32(1):26-32. doi: 10.1177/09637214221128252. Epub 2023 Feb 7.
Life motion, the active movements of people and other animals, contains a wealth of information that is potentially accessible to the visual system of an observer. Biological-motion point-light displays have been widely used to study both the information contained in life motion stimuli and the visual mechanisms that make use of it. Biological motion conveys motion-mediated dynamic shape, which in turn can be used for identification and recognition of the agent, but it also contains local visual invariants that humans and other animals use as a general detection system that signals the presence of other agents in the visual environment. Here, we review recent research on behavioral, neurophysiological, and genetic aspects of this life-detection system and discuss its functional significance in the light of earlier hypotheses.
生命运动，即人和其他动物的主动运动，包含着丰富的信息，观察者的视觉系统有可能获取这些信息。生物运动点光显示已被广泛用于研究生命运动刺激中包含的信息以及利用这些信息的视觉机制。生物运动传达由运动介导的动态形状，而这种动态形状又可用于识别和辨认主体，但它还包含局部视觉不变量，人类和其他动物将其用作一种通用的检测系统，用以提示视觉环境中其他主体的存在。在此，我们综述了关于这一生命检测系统的行为、神经生理学和遗传学方面的最新研究，并根据早期假说讨论其功能意义。
