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Working Memory

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...

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Related Experiment Video

Updated: May 23, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Signal Intrusion Explains Divergent Effects of Visual Distraction on Working Memory.

Ziyao Zhang¹, Jarrod A Lewis-Peacock¹

¹Department of Psychology, the University of Texas at Austin.

Psychological Science

|May 5, 2025

Summary

This summary is machine-generated.

Perceptual distractors interfere with visual working memory. A new signal-intrusion model explains how distractors affect memory precision and accuracy through a unified mechanism.

Keywords:

distraction interference memory distortion working memory

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Last Updated: May 23, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

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Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking

Published on: August 29, 2018

Area of Science:

Cognitive Psychology
Neuroscience
Computational Modeling

Background:

Perceptual distraction significantly impacts visual working memory (VWM) performance.
Previous research indicates varied effects of distraction, such as attractive biases, reduced precision, and increased guessing, suggesting multiple interference mechanisms.
Existing models struggle to reconcile these divergent findings.

Purpose of the Study:

To propose and validate a novel signal-intrusion model within the target-confusability-competition (TCC) framework.
To reconcile discrepant findings on how perceptual distraction affects VWM performance.
To identify a unified mechanism underlying distraction's influence on memory bias, precision, and guess rate.

Main Methods:

Development of a TCC-based signal-intrusion model.
Model comparison against alternative models using data from three delayed-estimation tasks involving distraction.
Empirical testing with 220 adult participants.

Main Results:

The TCC-intrusion model demonstrated a superior fit to VWM error distributions compared to other models.
Distractor intrusions were found to decrease as target-distractor dissimilarity increased, supporting the sensory-recruitment hypothesis.
The model successfully replicated the varied effects of distraction on memory bias, precision, and guess rate.

Conclusions:

Perceptual distractors affect VWM through a unified mechanism of signal intrusion.
The TCC-intrusion model provides a parsimonious explanation for diverse distraction effects in VWM.
Findings highlight the role of signal integration and competition in VWM under distracting conditions.