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Updated: Jun 20, 2026
05:10
Measuring the Behavioral Effects of Intraocular Scatter
Published on: February 18, 2021
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Spatial comparison of disappearance and scintillation phenomena using a single-unit scintillating grid illusion
Masaki Mori1, Takamichi Sushida2, Shintaro Kondo3
1Waseda University, Japan.
Perception
|February 10, 2025
Summary
The scintillating grid illusion causes visual disappearance and scintillation. This study found these effects are more pronounced horizontally than vertically, suggesting spatial anisotropy in peripheral vision.
Area of Science:
- Visual perception
- Psychophysics
- Illusory phenomena
Background:
- The scintillating grid illusion is known to cause visual disappearance and scintillation.
- The precise spatial distribution of these phenomena in peripheral vision remains uncharacterized.
Purpose of the Study:
- To investigate the spatial properties of disappearance and scintillation in the scintillating grid illusion.
- To determine if these perceptual phenomena exhibit spatial anisotropy.
Main Methods:
- Experiment 1 involved binocular observation of a scintillating grid illusion with participants reporting perception of a white disk and illusory blackness.
- Experiment 2 replicated the task using monocular viewing conditions.
Main Results:
- Both the perceptual region of the white disk and illusory blackness were found to be larger horizontally than vertically.
- This indicates spatial anisotropy in both phenomena under binocular viewing.
- Spatial anisotropy was not definitively rejected in monocular vision.
Conclusions:
- The perceptual regions of disappearance and scintillation in the scintillating grid illusion exhibit spatial anisotropy, being larger in the horizontal meridian.
- These findings contribute to understanding the coexistence and spatial characteristics of these phenomena in peripheral vision.
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