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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

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A Binocular Information Source for Size Perception.

Nam-Gyoon Kim¹

¹Department of Psychology, Keimyung University, Daegu, South Korea.

Frontiers in Psychology

|December 20, 2017

Summary

This study introduces a new binocular cue for size perception, challenging the long-standing size distance invariance hypothesis. This novel information source, based on geometry, offers an alternative to traditional cues in understanding how we perceive object size.

Keywords:

binocular information source metric information size distance invariance hypothesis size distance paradox size perception

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Area of Science:

Visual perception
Computational neuroscience
Psychophysics

Background:

The size distance invariance hypothesis has dominated size perception research, despite inconclusive validation.
A lack of alternative information sources has contributed to the hypothesis's persistence.

Purpose of the Study:

To propose a novel binocular information source for size perception.
To offer an alternative to existing size perception models, particularly the size distance invariance hypothesis.

Main Methods:

Developed a model based on binocular geometry.
Expressed the model using four angular measures and interocular distance.
Explicitly excluded egocentric distance information.

Main Results:

The proposed binocular information source is independent of egocentric distance.
This new source can potentially augment existing size perception cues.

Conclusions:

A novel binocular cue offers a new perspective on size perception.
This geometric information source provides a viable alternative for understanding how size is perceived.