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Related Experiment Video

Updated: Aug 18, 2025

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Published on: January 19, 2024

Slow motion bias: Exploring the relation between time overestimation and increased perceived intentionality.

Norman Hüttner¹, Laura Sperl², Anna Schroeger³

¹9378Friedrich Schiller University Jena, Germany.

|December 6, 2022

Summary

Slow motion videos are perceived as longer and more intentional. Providing information about video speed reduced duration overestimation but did not eliminate the perceived intentionality bias in time perception studies.

Keywords:

duration intentionality overestimation bias slow motion subjective time time estimation time perception video speed

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Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Area of Science:

Cognitive Psychology
Perception Science

Background:

Slow motion playback of actions increases perceived duration and intentionality.
Prior research suggests duration bias diminishes with knowledge of the slow motion factor.

Purpose of the Study:

To investigate if providing information about the slow motion factor eliminates the bias in perceived intentionality.
To examine the interplay between video speed, duration estimation, and intentionality judgments.

Main Methods:

Two groups viewed basketball foul clips at varying speeds.
One group received information on the slow motion factor; the other did not.
Participants rated perceived duration and intentionality of actions.

Main Results:

The overestimation of duration with increased slow motion was replicated.
Providing slow motion information showed a potential reduction in duration overestimation.
Intentionality ratings increased with slow motion, and this effect was not reduced by speed information, despite overall lower ratings in the informed group.

Conclusions:

Knowledge of the slow motion factor may mitigate duration overestimation but not the perceived intentionality bias.
Further research is needed to understand the mechanisms behind these distinct perceptual temporal biases.
Investigating different time processing systems may elucidate these effects.