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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Prioritization sharpens working memories but does not protect them from distraction.

Ziyao Zhang1, Jarrod A Lewis-Peacock1

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

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Prioritizing items in visual working memory improves memory precision but does not prevent biases caused by perceptual distractors. These findings highlight that memory benefits do not extend to protection from distraction.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Perceptual distraction can distort visual working memory.
  • Memory responses are often biased toward similar distractors.
  • The effect of item prioritization on distractor bias is not well understood.

Purpose of the Study:

  • To investigate whether prioritizing items in working memory protects them from perceptual distraction biases.
  • To examine how retrospective cues influence the impact of distractors on prioritized and unprioritized items.

Main Methods:

  • Five behavioral experiments were conducted.
  • Retrospective cues were used to manipulate item prioritization in working memory.
  • Nonparametric analyses and a distractor intrusion model were employed to analyze data.

Main Results:

  • Prioritized items showed improved memory precision (lower errors, stronger signals).
  • Prioritized items were still significantly biased by visual distractors.
  • The degree of distractor bias was similar for prioritized and unprioritized items.

Conclusions:

  • Item prioritization enhances working memory precision.
  • Prioritization does not confer immunity to perceptual distractor biases.
  • Benefits of working memory prioritization do not include protection from distraction.