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Does maintaining bindings in visual working memory require more attention than maintaining features?

Xiaowei Che1, Xiaowei Ding2, Xiaoli Ling1

  • 1a Department of Psychology , Shandong Normal University , Jinan , People's Republic of China.

Memory (Hove, England)
|December 25, 2018
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Summary
This summary is machine-generated.

Maintaining object bindings in visual working memory (VWM) requires more attention than features only for dissimilar items. Similarity enhances binding stability, reducing attentional demands in VWM.

Keywords:
Visual working memorybindingfeatureobject-based attentionsimilarity

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Visual working memory (VWM) is crucial for cognitive tasks.
  • The attentional requirements for maintaining object features versus their bindings in VWM are debated.
  • Representation stability may influence attentional load.

Purpose of the Study:

  • To investigate if maintaining bindings demands more attention than features in VWM.
  • To examine the role of object similarity in the attentional requirements for VWM.
  • To determine if representation stability mediates the effect of similarity on VWM attention.

Main Methods:

  • Experiments 1 and 2 used a feature report task during VWM maintenance to assess attention.
  • Experiment 3 employed a suffix during VWM maintenance to probe representation stability.
  • Participants maintained representations of similar and dissimilar objects.

Main Results:

  • Bindings were more impaired than features for dissimilar objects when attention was divided.
  • This impairment was not observed for similar objects.
  • Similar object bindings showed less suffix interference, indicating greater stability.

Conclusions:

  • Maintaining bindings does not inherently require more attention than features if representations are stable.
  • Object similarity enhances the stability of binding representations in VWM.
  • Attention allocation in VWM is influenced by the stability and similarity of object representations.