Steinhof Verena, Schroeger Anna, Liepelt Roman, Sperl Laura
Department of General Psychology: Judgment, Decision Making, Action, Faculty of Psychology, University of Hagen (FernUniversität in Hagen), Universitätsstraße 37, 58097, Hagen, North Rhine-Westphalia, Germany.
Department of Experimental Psychology, Faculty of Psychology, University of Gießen (Justus-Liebig-Universität Gießen), Alter Steinbacher Weg 38, 35394, Giessen, Hesse, Germany.
Cogn Res Princ Implic. 2025 Jul 1;10(1):36. doi: 10.1186/s41235-025-00637-2.
While decades of research have deepened our understanding of time perception, the perception of (manipulated) video speed has been relatively underexplored but is gaining interest with recent technological advances. This study systematically investigated human perception of video speed, clip duration and original duration across slow motion, original speed and time lapse. Results showed that participants consistently underestimated video speed in time lapse and overestimated it in slow motion, suggesting a tendency toward an internal perceptual standard. A similar pattern emerged for clip duration with videos being generally overestimated in their duration when played in accelerated speed, and underestimated in slow motion. For original duration estimations, this pattern was reversed. Surprisingly, while estimations of clip and original duration were highly correlated in all video speed conditions, both measures were uncorrelated with estimated video speed. However, an exploratory analysis suggested that the distorted perception of original duration may, at least in parts, still be rooted in participants relying on their own (but biased) interpretations of clip duration and video speed. Most importantly, these results reveal distortions in perception caused by altered video speeds, suggesting caution when employing these video techniques for judgments and decision-making. The findings provide foundation for further research, investigating the cognitive mechanisms of human video speed perception.
尽管数十年的研究加深了我们对时间感知的理解，但对（经过处理的）视频速度的感知却相对未得到充分探索，不过随着最近的技术进步，它正日益受到关注。本研究系统地调查了人类对视频速度、片段时长和原始时长在慢动作、原始速度和延时摄影中的感知。结果表明，参与者在延时摄影中持续低估视频速度，而在慢动作中高估视频速度，这表明存在一种趋向内部感知标准的倾向。对于片段时长也出现了类似的模式，视频以加速速度播放时其时长通常被高估，而在慢动作中则被低估。对于原始时长估计，这种模式则相反。令人惊讶的是，虽然在所有视频速度条件下，片段时长估计和原始时长估计高度相关，但这两种测量与估计的视频速度均不相关。然而，一项探索性分析表明，对原始时长的扭曲感知可能至少部分仍然源于参与者依赖他们自己（但有偏差）对片段时长和视频速度的解读。最重要的是，这些结果揭示了视频速度改变所导致的感知扭曲，这表明在将这些视频技术用于判断和决策时需谨慎。这些发现为进一步研究人类视频速度感知的认知机制奠定了基础。
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