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Related Experiment Videos

Suffix effects and intrusion errors in young and elderly subjects

J Greenhut-Wertz1, S K Manning

  • 1Hunter College, New York, USA.

Experimental Aging Research
|April 1, 1995
PubMed
Summary

Elderly college students showed deficits in selective attention and response inhibition compared to younger peers. This suggests age-related challenges in cognitive control and memory recall tasks.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Gerontology

Background:

  • Age-related cognitive decline is a significant area of research.
  • Understanding specific deficits in attention and inhibition is crucial for interventions.

Purpose of the Study:

  • To investigate age-related differences in selective attention and response inhibition.
  • To explore how these cognitive functions are affected in elderly college students.

Main Methods:

  • Utilized the stimulus suffix paradigm with auditory and visual letter sequences.
  • Employed spoken and written serial recall, with and without a non-recalled suffix.
  • Compared performance between 16 young and 16 elderly college students.

Main Results:

  • Elderly students exhibited more difficulty in serial recall despite similar letter spans.
  • Older adults showed reduced final-item recall advantage and increased susceptibility to suffix interference.
  • Elderly participants made more suffix and extralist intrusion errors, indicating potential internal noise and impaired response inhibition.

Conclusions:

  • Age differences in selective attention and response inhibition were evident.
  • Elderly individuals may experience greater attentional deficits and less effective response inhibition.
  • Findings suggest age-related challenges in managing internally generated cognitive noise during recall tasks.

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