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Related Experiment Videos

Forgetting in recognition memory with and without recollective experience.

J M Gardiner1, R I Java

  • 1Department of Social Sciences, City University, London, England.

Memory & Cognition
|November 1, 1991
PubMed
Summary

Memory recall differs over time. "Remember" responses decrease sharply within a week, while "know" responses remain stable, but both decline gradually over six months.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • Recognition memory can be based on recollection or familiarity.
  • Understanding the temporal dynamics of these two memory components is crucial for memory research.

Purpose of the Study:

  • To investigate the differential forgetting rates of
  • remember
  • (recollective experience) and
  • know
  • (familiarity-based) recognition responses.
  • To examine how retention interval affects these two types of memory responses over extended periods.

Main Methods:

  • Two recognition memory experiments were conducted.
  • Participants indicated whether recognition was based on recollection (
  • remember
  • ) or familiarity (
  • know
  • ).
  • Retention intervals varied from 10 minutes to 6 months.

Main Results:

  • Remember
  • responses significantly decreased between 10 minutes and 1 week, while
  • know
  • responses remained stable.
  • From 1 week to 6 months, both
  • remember
  • and
  • know
  • responses showed a similar, gradual decline.
  • Accurate discrimination between targets and lures was maintained even after 6 months.

Conclusions:

  • Remember
  • and
  • know
  • memory components exhibit distinct temporal decay patterns.
  • Both recollection and familiarity contribute to long-term memory retention, albeit at different rates initially.
  • Findings support multiple memory systems theories and processing accounts of memory retention.

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