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Partial object doubling in the periphery induced by negative afterimages
1Department of Cognitive Science, Faculty of Media and Knowledge Sciences, University of Malta, Msida, Malta.
I-Perception
|November 11, 2024
Summary
We discovered partial object doubling, a visual illusion where moving objects appear distorted and duplicated. This phenomenon occurs from interactions between drawn lines and afterimages during stable viewing.
Area of Science:
- Visual Perception
- Psychophysics
- Cognitive Neuroscience
Background:
- Perceptual distortions can arise from interactions between visual stimuli.
- Afterimages are a known visual phenomenon that can influence subsequent perception.
Purpose of the Study:
- To describe and characterize a novel visual phenomenon termed partial object doubling.
- To investigate the underlying mechanisms of this perceptual distortion.
Main Methods:
- Describing the phenomenon of partial object doubling.
- Analyzing the interplay between physical contours and negative afterimages.
- Providing an interactive online demonstration for user experience and parameter manipulation.
Main Results:
- Partial object doubling involves distorted and duplicated perceived contours of moving targets.
- The effect is linked to dynamic interactions between drawn contours and negative afterimages.
- User interaction with the online demo allows for exploration of influencing parameters.
Conclusions:
- Partial object doubling represents a new visual illusion.
- The phenomenon highlights the complex interplay between stimulus properties and afterimage dynamics in visual perception.
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