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Related Experiment Video

Updated: Oct 25, 2025

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

Post-saccadic changes disrupt attended pre-saccadic object memory.

Anne-Sophie Laurin^1,2, Maxime Bleau^3,4, Jessica Gedjakouchian³

¹University of Montreal, Department of Psychology, Montreal, Quebec, Canada.

Journal of Vision

|August 4, 2021

Summary

This summary is machine-generated.

Trans-saccadic memory, which tracks objects across eye movements (saccades), is disrupted by post-saccadic scene changes. Memory for pre-saccadic objects is particularly vulnerable when the saccade target is removed or its location shifts.

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Eye Movement Monitoring of Memory

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Published on: August 15, 2010

Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Background:

Trans-saccadic memory maintains object information across eye movements (saccades).
This memory system has limited resources and is influenced by attention.
Previous research showed post-saccadic object recognition is impaired by relevant pre-saccadic objects.

Purpose of the Study:

To investigate how memory of pre-saccadic objects is affected by irrelevant post-saccadic scene changes.
To examine the role of attention, directed by saccade targets, in trans-saccadic memory disruption.
To understand the limits of trans-saccadic memory when object correspondence is broken.

Main Methods:

Participants identified a pre-saccadic symbol before planning a saccade to one of six placeholders.
Post-saccadic changes involved removing the scene, the target placeholder, or shifting/rotating the target placeholder.
Attention was modulated by saccading to or away from the target object.

Main Results:

Identification performance decreased when the saccade-target placeholder disappeared post-saccade.
Performance further declined with increasing inward/outward shifts or rotations of the saccade-target placeholder.
Pre-saccadic attentional facilitation amplified the disruption caused by post-saccadic changes.

Conclusions:

Pre-saccadic memory is vulnerable to abrupt, attention-grabbing post-saccadic visual scene changes.
Disruption is greatest when changes involve the saccade target, breaking object correspondence.
Findings highlight the limited and attention-dependent nature of trans-saccadic memory resources.