Related Experiment Video
Updated: May 16, 2026

07:45
Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
Published on: July 21, 2020
Inhibition of return at different eccentricities in the visual field share the same temporal window
Yan Bao1, Zhiyuan Wang, Wei Liang
1Department of Psychology, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China. baoyan@pku.edu.cn
Neuroscience Letters
|December 11, 2012
Summary
This study investigated how the visual field
Area of Science:
- Neuroscience
- Visual Perception
- Cognitive Psychology
Background:
- Human visual field shows functional subdivision.
- Inhomogeneity is supported by attention studies on inhibition of return (IOR).
- IOR effects are stronger in the periphery than the perifoveal visual field.
Purpose of the Study:
- To investigate if visual field inhomogeneity affects temporal dynamics of IOR.
- To determine when IOR effects disappear in different visual field regions.
Main Methods:
- Examined the temporal dynamics of inhibition of return (IOR).
- Compared IOR disappearance times in perifoveal and peripheral visual fields.
Main Results:
- IOR is significantly stronger in the periphery compared to the perifoveal visual field.
- Temporal decay functions for IOR reached threshold at approximately the same time for both regions.
Conclusions:
- Visual field inhomogeneity does not alter the temporal control window for IOR.
- Suggests a common temporal mechanism governs IOR across different visual field locations.
Related Concept Videos
Color Vision
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
Vision
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Anatomy of the Eyeball
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...

