Interactions between visual working memory representations

Gi Yeul Bae, Steven J. Luck

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

We investigated whether the representations of different objects are maintained independently in working memory or interact with each other. Observers were shown two sequentially presented orientations and required to reproduce each orientation after a delay. The sequential presentation minimized perceptual interactions so that we could isolate interactions between memory representations per se. We found that similar orientations were repelled from each other whereas dissimilar orientations were attracted to each other. In addition, when one of the items was given greater attentional priority by means of a cue, the representation of the high-priority item was not influenced very much by the orientation of the low-priority item, but the representation of the low-priority item was strongly influenced by the orientation of the high-priority item. This indicates that attention modulates the interactions between working memory representations. In addition, errors in the reported orientations of the two objects were positively correlated under some conditions, suggesting that representations of distinct objects may become grouped together in memory. Together, these results demonstrate that working-memory representations are not independent but instead interact with each other in a manner that depends on attentional priority.

Original languageEnglish (US)
Pages (from-to)2376-2395
Number of pages20
JournalAttention, Perception, and Psychophysics
Volume79
Issue number8
DOIs
StatePublished - Nov 1 2017
Externally publishedYes

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Keywords

  • Attention
  • Attraction
  • Interaction
  • Repulsion
  • Working memory

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Sensory Systems
  • Linguistics and Language

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