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The effects of cognitive load and encoding modality on prospective memory.

Guangzheng Li1, Mei Li2, Jin Wang2

  • 1School of Education Science, Jiangsu Normal University, No. 101 Shanghai Street. 221116, Xuzhou, China. psyliz@sina.com.

Cognitive Processing
|March 29, 2022
PubMed
Summary

Prospective memory, remembering to perform intended actions, suffers under high cognitive load with verbal tasks. However, enactment encoding (physically performing actions) improves prospective memory, even under high cognitive load.

Keywords:
Cognitive loadEnactment encodingMulti-process theoryProspective memoryVerbal encoding

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory

Background:

  • Successful intention execution is vital for daily functioning.
  • Forgetting important intentions, known as prospective memory failure, is a common issue.
  • Investigating prospective memory under demanding conditions is crucial for understanding memory limitations.

Purpose of the Study:

  • To examine how cognitive load and encoding modality affect prospective memory performance.
  • To determine if enactment encoding can mitigate the negative impact of high cognitive load on prospective memory.

Main Methods:

  • A mixed-design study with 2x2 factors: cognitive load (high vs. standard) and encoding modality (verbal vs. enactment).
  • Participants were tasked with ongoing cognitive tasks while remembering to perform future intentions.
  • Prospective memory performance was measured under different experimental conditions.

Main Results:

  • High cognitive load significantly impaired prospective memory performance for verbal encoding.
  • Enactment encoding enhanced prospective memory performance compared to verbal encoding.
  • Enactment encoding abolished the detrimental effect of high cognitive load on prospective memory.

Conclusions:

  • Encoding modality plays a critical role in prospective memory, especially under high cognitive load.
  • Enactment encoding offers a robust strategy to improve prospective memory and overcome cognitive limitations.
  • Future research should explore strategic interventions for prospective memory enhancement.