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Related Experiment Video

Updated: Jun 20, 2026

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Perceived duration of visual motion increases with speed.

Sae Kaneko¹, Ikuya Murakami

¹Department of Life Sciences, The University of Tokyo, Tokyo, Japan. sae@fechner.c.u-tokyo.ac.jp

Journal of Vision

|September 19, 2009

Summary

The perceived duration of moving objects increases with speed, not temporal or spatial frequency. This visual illusion is likely processed in higher brain areas of the dorsal pathway.

Area of Science:

Visual Perception
Cognitive Neuroscience

Background:

The perceived duration of moving objects is often longer than their actual duration.
The underlying mechanisms of this temporal illusion remain debated among scientists.

Purpose of the Study:

To identify the key factor determining the perceived duration of moving stimuli.
To investigate the role of stimulus speed, temporal frequency, and spatial frequency in this illusion.

Main Methods:

Two experiments utilized duration matching and reproduction methods.
Systematic manipulation of temporal frequency, spatial frequency, and speed of visual stimuli.
Experiment 3 assessed onset and offset reaction times for moving stimuli.

Main Results:

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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

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Last Updated: Jun 20, 2026

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

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Motion-Acuity Test for Visual Field Acuity Measurement with Motion-Defined Shapes

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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

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Published on: August 22, 2025

Stimulus speed, not temporal or spatial frequency, significantly correlated with perceived duration.
Apparent duration increased proportionally with the logarithm of stimulus speed.
Onset and offset reaction times showed minimal changes for moving stimuli.

Conclusions:

The speed of a moving object is the primary determinant of its perceived duration.
This temporal illusion is likely mediated by higher-level motion processing in the dorsal visual pathway.
The findings suggest a complex interplay between motion perception and time perception in the brain.