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Related Experiment Video

Updated: Jun 22, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

The relationship between saccadic suppression and perceptual stability.

Tamara L Watson¹, Bart Krekelberg

¹Center for Molecular and Behavioral Neuroscience, Rutgers University, 197 University Avenue, Newark, NJ 07102, USA. tamara@vision.rutgers.edu

Current Biology : CB

|June 2, 2009

Summary

This summary is machine-generated.

We don't consciously see motion during saccadic eye movements due to saccadic omission. However, even omitted stimuli can influence perception, challenging existing theories of visual stability.

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Last Updated: Jun 22, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Published on: March 18, 2019

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Area of Science:

Neuroscience
Visual Perception
Cognitive Science

Background:

Saccadic eye movements cause a lack of awareness of retinal motion, termed saccadic omission.
Saccadic suppression, a reduction in visual sensitivity during saccades, is often studied in relation to saccadic omission.
It was hypothesized that saccadic suppression removes perisaccadic stimuli to maintain perceptual stability.

Purpose of the Study:

To investigate if perceptual stability necessitates the removal of perisaccadic stimuli via saccadic suppression.
To determine if stimuli undergoing saccadic omission can still influence visual perception.
To explore the mechanisms underlying perceptual stability.

Main Methods:

Experimental manipulation of visual stimuli during saccadic eye movements.
Measurement of perceptual responses to stimuli that are subject to saccadic omission.
Analysis of shape contrast illusions generated by perisaccadic stimuli.

Main Results:

A stimulus experiencing saccadic omission can still induce a shape contrast illusion.
This illusion can occur even when the inducer and test stimuli are spatially separated, suggesting later-stage processing.
Perceptual stability is achieved without complete removal of perisaccadic stimuli from processing.

Conclusions:

Perceptual stability is maintained even when visual stimuli are omitted from awareness.
Early visual processing of perisaccadic stimuli occurs, but awareness is prevented at later stages.
This suggests a revised model of perceptual stability where awareness, not processing, is gated.