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Related Experiment Video

Updated: Jun 5, 2026

Eye Movement Monitoring of Memory

Eye Movement Monitoring of Memory

Published on: August 15, 2010

Storage and binding of object features in visual working memory.

Paul M Bays¹, Emma Y Wu, Masud Husain

¹UCL Institute of Cognitive Neuroscience & Institute of Neurology, Queen Square, London, UK. p.bays@ion.ucl.ac.uk

Neuropsychologia

|December 22, 2010

Summary

Visual working memory does not use discrete slots. Instead, memory errors for object features like color and orientation occur independently, even with many items, supporting a shared-resource model.

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Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Background:

The discrete slots model of visual working memory posits limited capacity, with attention selecting objects for storage.
This model predicts correlated errors in recalling multiple features of the same object.

Purpose of the Study:

To investigate the independence of feature errors in visual working memory under varying memory loads.
To test predictions of the discrete slots model versus a shared-resource model.

Main Methods:

Participants recalled object color and orientation from memory after viewing arrays of items.
Memory load was manipulated by varying the number of items presented (up to 6).
Error patterns in feature reproduction were analyzed for independence and distribution.

Main Results:

Errors in color and orientation recall were largely independent, even at high memory loads.
Response distributions showed increased error width with higher memory loads.
A subset of responses involved misreporting features from other objects, indicating feature misbinding.

Conclusions:

Findings contradict the discrete slots model, supporting a shared-resource model of visual working memory.
Increasing memory load degrades the fidelity of feature and binding information storage.
Errors in feature storage and binding occur independently, suggesting distinct but interacting processes.