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Updated: Jul 4, 2026
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High-speed Particle Image Velocimetry Near Surfaces
Published on: June 24, 2013
The effect of previously viewed velocities on motion extrapolation
Alexis D J Makin1, Ellen Poliakoff, Joy Chen
1School of Psychological Sciences, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK.
Vision Research
|July 1, 2008
Summary
Previous motion perception influenced current velocity judgments, suggesting that successive velocity representations blend together. This study investigated how prior motion experiences impact current speed perception.
Area of Science:
- Cognitive psychology
- Visual perception
- Human motor control
Background:
- Preliminary evidence suggests interference between sequentially encoded velocities.
- Understanding velocity perception is crucial for explaining motion extrapolation and prediction.
Purpose of the Study:
- To investigate the interference effect between subsequently encoded velocities.
- To explore how prior velocity information influences current motion perception.
Main Methods:
- Utilized a motion extrapolation paradigm with disappearing moving targets.
- Participants judged target reappearance times after occlusion.
- Experiment 3 involved targets reappearing on-time, early, or late.
Main Results:
- Participants' responses indicated a perceived increase in current velocity following a fast previous trial, and vice versa.
- A higher rate of 'correct' judgments for early reappearing targets occurred after fast previous trials.
Conclusions:
- Successively encoded velocity representations blend, influencing current motion perception.
- This blending effect demonstrates a form of perceptual learning or adaptation in velocity encoding.
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