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When motion improves working memory.

Gaën Plancher1, Florence Mazeres1, Guillaume T Vallet2

  • 1a Laboratoire d'Etude des Mécanismes Cognitifs , Université Lyon 2 , Bron , France.

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Summary
This summary is machine-generated.

Memory traces from Self-Performed Tasks (SPT) and Verbal Tasks (VT) are maintained by attentional refreshing, not solely attention. The enactment effect, where performing actions improves memory, is diminished by verbal tasks and reversed by motor tasks.

Keywords:
Working memoryenactmentmotor action

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory Research

Background:

  • Understanding how memory traces are maintained in working memory is crucial for cognitive science.
  • The enactment effect, where self-performed actions enhance memory recall, is a well-documented phenomenon.
  • The precise mechanisms underlying memory trace maintenance and the enactment effect, particularly the role of attention, require further investigation.

Purpose of the Study:

  • To investigate the maintenance of memory traces for Self-Performed Tasks (SPT) and Verbal Tasks (VT) in working memory.
  • To examine the influence of concurrent verbal and motor tasks with varying cognitive loads on memory performance.
  • To explore the role of attention in the enactment effect and memory trace maintenance.

Main Methods:

  • A complex span task was employed, involving memorization of sentence-action pairs encoded via SPT or VT.
  • Concurrent tasks (verbal, low-load motor, high-load motor) or a control condition were introduced between memory items.
  • Memory performance was assessed across different encoding types and concurrent task conditions.

Main Results:

  • Memory performance for both SPT and VT decreased with increased cognitive load but was not significantly impaired by verbal or motor suppression alone.
  • The enactment effect was observed in the control condition but diminished with a verbal concurrent task and reversed with motor concurrent tasks.
  • Increased VT memory performance was noted with repetitive motor tasks, suggesting a complex interaction between motor activity and memory encoding.

Conclusions:

  • Memory traces are maintained through attentional refreshing, irrespective of whether the initial encoding was SPT or VT.
  • The enactment effect is not solely attention-dependent and can be modulated, even reversed, by concurrent motor activity.
  • These findings contribute to a nuanced understanding of working memory, memory trace maintenance, and the enactment effect.