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Related Experiment Videos

Cognitive performance as modified by age and ECT history

R S Lipman1, E A Brown, G A Silbert

  • 1Friends Hospital, Philadelphia, PA.

Progress in Neuro-Psychopharmacology & Biological Psychiatry
|July 1, 1993
PubMed
Summary

Older depressed patients with multiple electroconvulsive therapy (ECT) treatments may experience declines in verbal-narrative memory. This study investigated cognitive performance in relation to age and ECT history among inpatients.

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Area of Science:

  • Neuroscience
  • Geriatric Psychiatry
  • Cognitive Psychology

Background:

  • Electroconvulsive therapy (ECT) is a treatment for severe depression.
  • Cognitive effects of ECT, particularly in older adults, require further investigation.
  • Understanding long-term cognitive impacts is crucial for patient care.

Purpose of the Study:

  • To assess cognitive processing in depressed inpatients based on age and electroconvulsive therapy (ECT) history.
  • To identify potential adverse cognitive effects associated with cumulative ECT exposure.
  • To examine the interaction between age and ECT history on cognitive performance.

Main Methods:

  • Cognitive function was evaluated using 15 subtests from the Wechsler Memory Scale (WMS) and Wechsler Adult Intelligence Scale-Revised (WAIS-R).

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  • Participants (N=109) were categorized by age (under 65 vs. 65+) and ECT history (none, one, or two+ series).
  • Statistical analyses included MANCOVA and ANCOVA, controlling for covariates like education.

    • Main Results:

    • No generalized adverse effects of ECT were observed across all participants.
    • Older patients (65+) with two or more prior ECT series showed significantly poorer performance on 4 specific cognitive tests.
    • These tests assessed personal information recall, story recall (immediate and delayed), and abstract reasoning (Similarities).

    Conclusions:

    • Prior electroconvulsive therapy (ECT) history does not generally impair cognitive function in depressed patients.
    • Verbal-narrative memory functioning in geriatric patients with a history of at least one ECT series may be particularly vulnerable to disruption.
    • These findings highlight the need for careful consideration of cumulative ECT effects in older adults.