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Age differences in retrieval consistency and response dominance.

A S Brown1, D B Mitchell

  • 1Southern Methodist University, Dallas, Texas.

Journal of Gerontology
|November 1, 1991
PubMed
Summary
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Older adults showed less consistent verbal recall than younger adults, especially with broader categories and longer intervals. This age-related decline in consistency was evident in both semantic and orthographic retrieval tasks.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Development

Background:

  • Understanding age-related changes in memory and cognitive consistency is crucial.
  • Previous research has explored verbal recall differences between age groups.

Purpose of the Study:

  • To compare the consistency of verbal responses between older and younger adults.
  • To investigate how retrieval interval and category breadth affect response consistency.
  • To examine the relationship between verbal ability and response dominance in different age groups.

Main Methods:

  • Two experiments were conducted comparing older and younger adults.
  • Experiment 1: Continuous retrieval from broad semantic and orthographic categories.
  • Experiment 2: Single-word retrieval from restricted categories using a picture-naming task.

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Main Results:

  • No age difference in generating dominant responses was found.
  • Older adults were less consistent than younger adults with broad categories.
  • Older adults showed declining consistency with increasing intervals for restricted categories; younger adults did not.
  • No positive relationship between verbal ability and response dominance was observed.

Conclusions:

  • Older adults exhibit reduced consistency in verbal recall compared to younger adults, particularly under conditions of broader semantic/orthographic categories and longer retrieval intervals.
  • Cognitive consistency in older adults may be more susceptible to temporal factors and category constraints.
  • The findings challenge previous assumptions about the link between verbal ability and response dominance across the lifespan.