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Novel Object Recognition Test for the Investigation of Learning and Memory in Mice
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Retaining event files in working memory requires extra object-based attention than the constituent elements.

Xiqian Lu1, Xiaochi Ma1, Yangfan Zhao1

  • 1Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, China.

Quarterly Journal of Experimental Psychology (2006)
|March 14, 2019
PubMed
Summary
This summary is machine-generated.

Maintaining event files in working memory (WM) relies on object-based attention. This study shows that retaining complex event files, like biological motion, in WM requires more attention than individual elements.

Keywords:
Event fileobject-based attentionworking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory Research

Background:

  • Working memory (WM) is crucial for daily activities, including action planning and social interaction.
  • Event files bind action-related information with visual elements (e.g., colors) for processing in WM.
  • Object-based attention is theorized to support the rehearsal of static feature bindings in WM.

Purpose of the Study:

  • To investigate whether retaining event files in WM demands more attentional resources than retaining constituent elements.
  • To explore the role of object-based attention in the maintenance of event files within WM.
  • To test the hypothesis that object-based attention is key for retaining event files in WM.

Main Methods:

  • Participants memorized biological motion (BM) stimuli, colors/locations, or the binding of these elements (event files) in separate blocks.
  • An object-feature report task, designed to consume object-based attention, was introduced during the WM maintenance phase.
  • Performance was compared across conditions to assess the impact of the secondary task on WM retention.

Main Results:

  • Experiments 1 and 2 demonstrated a selective impairment in retaining BM event files when object-based attention was engaged.
  • This impairment was specific to event files and not observed for constituent elements alone.
  • Control experiments (3 and 4) ruled out explanations related to unbalanced element numbers or visual processing demands of the secondary task.

Conclusions:

  • Object-based attention plays a critical role in the maintenance of event files within working memory.
  • Retaining integrated event information, such as biological motion, is more attentionally demanding than maintaining individual features.
  • These findings elucidate the attentional mechanisms underlying the complex representation of dynamic events in working memory.