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Related Experiment Video

Updated: Jul 7, 2025

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

Partial blindness: Visual experience is not rich, but not sparse.

Cheongil Kim¹, Sang Chul Chong^2,3

¹Graduate Program in Cognitive Science, Yonsei University, Seoul, Korea.

Psychonomic Bulletin & Review

|December 27, 2023

Summary

This summary is machine-generated.

Perceptual experience is limited by an information bottleneck. Seeing multiple faces reduces perceptual resolution for individual faces due to partial blindness, suggesting a sparser perception than initially thought.

Keywords:

Degradation neglect Information bottleneck Partial blindness Perceptual awareness

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Area of Science:

Cognitive psychology
Neuroscience
Visual perception

Background:

The human capacity for cognitive access is limited, potentially constraining perceptual experience.
Understanding the limits of perception is crucial for cognitive science and artificial intelligence.

Purpose of the Study:

To investigate whether perceptual experience is constrained by an information bottleneck.
To determine how this information bottleneck affects perceptual resolution when viewing single versus multiple faces.

Main Methods:

Observers' perceptual resolution for individual faces was measured.
Detection accuracy of face degradation was assessed under single-face and multiple-face viewing conditions.
Two experiments were conducted to compare perceptual resolution.

Main Results:

Perceptual resolution decreased significantly when observers viewed multiple faces compared to a single face.
This decrease was primarily due to the neglect of face degradation, not complete blindness.
The findings indicate partial blindness to individual items within a group.

Conclusions:

Perceptual experience is constrained by an information bottleneck, manifesting as partial blindness.
Perception at a glance may be sparser than when attention is focused on a single item.
However, it is richer than perceiving only a very small number of items.