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Related Experiment Videos

Subjective shortening in humans' memory for stimulus duration

J H Wearden1, A Ferrara

  • 1Department of Psychology, Manchester University, U.K.

The Quarterly Journal of Experimental Psychology. B, Comparative and Physiological Psychology
|May 1, 1993
PubMed
Summary

Human memory for stimulus duration was tested using a delayed-matching task. Findings suggest working memory for duration involves a subjective shortening effect, similar to that observed in pigeons.

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Area of Science:

  • Cognitive Psychology
  • Comparative Psychology
  • Neuroscience

Background:

  • Investigating memory for stimulus duration is crucial for understanding temporal cognition.
  • Previous research utilized delayed-matching techniques in pigeons to study event memory.

Purpose of the Study:

  • To examine human memory for stimulus duration using a modified delayed-matching paradigm.
  • To compare human duration memory mechanisms with those previously identified in pigeons.

Main Methods:

  • Three experiments employed a delayed-matching technique with auditory stimuli (500-Hz tone).
  • Varying delays (1-16 seconds) were introduced between sample and comparison stimuli.
  • Participants judged the duration relationship between sample and comparison stimuli.

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Main Results:

  • Overall accuracy showed minimal change with increasing delay.
  • Accuracy declined when the comparison duration matched the sample, remained constant when shorter, and increased when longer.
  • Error analysis suggested subjective shortening of the sample and a time-order error influenced judgments.

Conclusions:

  • Human working memory for duration exhibits a subjective shortening effect, mirroring findings in pigeons.
  • This suggests conserved mechanisms for temporal memory across species.
  • The study highlights the complexity of duration memory and its underlying cognitive processes.