Visual motion stimuli can sometimes distort our perception of time. This effect is dependent on the apparent speed of the moving stimulus, where faster stimuli are usually perceived lasting longer than slower stimuli. Although it has been shown that neural and cognitive processing of biological motion stimuli differ from non-biological motion stimuli, no study has yet investigated whether perceived durations of biological stimuli differ from non-biological stimuli across different speeds. Here, a prospective temporal reproduction task was used to assess that question. Biological motion stimuli consisted of a human silhouette running in place. Non-biological motion stimuli consisted of a rectangle moving in a pendular way. Amount and plausibility of movement for each stimulus and frame-rate (speed) were evaluated by an independent group of participants. Although the amount of movement perceived was positively correlated to frame rate both for biological and non-biological stimuli, movie clips involving biological motion stimuli were judged to last longer than non-biological motion stimuli only at frame rates for which movement was rated as plausible. These results suggest that plausible representations of biomechanical movement induce additional temporal distortions to those modulated by increases in stimulus speed. Moreover, most studies reporting neural and cognitive differences in the processing of biological and non-biological motion stimuli acquired neurophysiological data using fMRI. Here, we report differences in the processing of biological and non-biological motion stimuli across different speeds using functional near-infrared spectroscopy (fNIRS), a less costly and portable form of neurophysiological data acquisition.

视觉运动刺激有时会扭曲我们对时间的感知。这种效果取决于运动刺激的视在速度，在运动中，通常认为较快的刺激比较慢的刺激持续时间更长。尽管已经显示出生物运动刺激的神经和认知过程不同于非生物运动刺激，但是尚无研究调查生物刺激的感知持续时间在不同速度下是否不同于非生物刺激。在这里，一个预期的时间复制任务被用来评估这个问题。生物运动刺激包括在适当位置运行的人体轮廓。非生物运动刺激包括一个以摆动方式运动的矩形。由一组独立的参与者评估每种刺激的运动量和合理性以及帧速率（速度）。尽管对于生物和非生物刺激，感知到的运动量与帧速率均呈正相关，但只有在运动被认为是合理的帧速率下，涉及生物运动刺激的影片剪辑才被认为比非生物运动刺激的持续时间更长。这些结果表明，生物力学运动的合理表示会引起额外的时间扭曲，而不是通过刺激速度的增加来调节。此外，大多数研究报告了使用功能磁共振成像获得的生物生理学和非生物运动刺激的神经和认知差异。这里，