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Temporal interval production and processing in working memory

C Fortin1, R Breton

  • 1Ecole de psychologie, Université Laval, Quebec, Canada.

Perception & Psychophysics
|February 1, 1995
PubMed
Summary
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Working memory actively processing information interferes with time estimation. Cognitive load or item comparison during memory tasks significantly lengthens perceived time intervals.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Perception

Background:

  • Working memory is theorized to influence time estimation.
  • Previous studies indicated memory set size affects temporal interval production.

Purpose of the Study:

  • To differentiate between memory load and item comparison effects on time estimation.
  • To investigate the role of active working memory processing in time perception.

Main Methods:

  • Experiment 1: Temporal interval production with memory set retention and delayed probe comparison.
  • Experiments 2 & 3: Combined temporal production with concurrent working memory tasks (rhyme judgment, mental rotation) of varying cognitive load.

Main Results:

  • Memory set size alone did not affect temporal production when comparison was delayed.

Related Experiment Videos

  • Concurrent processing in working memory, regardless of memory load, proportionally lengthened produced temporal intervals.
  • Tasks involving active cognitive processing (rhyme judgment, mental rotation) interfered with time estimation.

    • Conclusions:

    • The interference suggests active processing within working memory, not just memory load, impacts time estimation.
    • Working memory, as a workspace for active information processing, plays a significant role in time perception.