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Related Concept Videos

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Related Experiment Video

Updated: Jun 15, 2026

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

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

Published on: July 16, 2015

Working memory enhances visual perception: evidence from signal detection analysis.

David Soto1, Alice Wriglesworth, Alex Bahrami-Balani

  • 1Division of Neuroscience, Imperial College London, Charing Cross Campus, London SW7 2AZ, England. d.soto@imperial.ac.uk

Journal of Experimental Psychology. Learning, Memory, and Cognition
|March 3, 2010
PubMed
Summary
This summary is machine-generated.

Working memory (WM) content matching visual stimuli enhances perceptual sensitivity. This effect occurs when items are actively held in WM, not just attended to, impacting early visual processing.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Working memory (WM) plays a crucial role in temporarily storing and manipulating information.
  • The interaction between working memory and sensory processing is a key area of cognitive neuroscience research.
  • Understanding how WM influences perception can elucidate mechanisms of attention and awareness.

Purpose of the Study:

  • To investigate whether matches between working memory contents and visual stimuli modulate perceptual sensitivity.
  • To determine if the effect of WM-stimulus matches on perception depends on whether the information is actively maintained in WM or merely attended.
  • To explore the neural mechanisms underlying WM's influence on early perceptual processing.

Main Methods:

  • Participants identified visual targets presented within colored shapes after being cued to hold an object in working memory (WM) or to attend to it.
  • The cue was sometimes re-presented, surrounding either the target (valid trials) or a distractor (invalid trials).
  • Perceptual sensitivity (A') and decisional criteria were measured to assess performance.

Main Results:

  • Perceptual sensitivity (A') was significantly enhanced on valid trials compared to invalid trials, but only when the cue was actively maintained in WM.
  • Minimal perceptual modulation was observed when the cue was merely attended and not held in WM.
  • Verbal cues were as effective as visual cues, and effects were independent of target saliency and decisional criteria.

Conclusions:

  • Matches between working memory contents and visual stimuli enhance perceptual sensitivity.
  • Reentrant feedback from working memory influences early stages of perceptual processing.
  • Working memory's role extends beyond information storage to actively shaping sensory input.