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Related Experiment Videos

Early Change in Cognitive Performance Accompanying Bilateral ECT.

Thomas B. Mackenzie1, Trevor R. P. Price, Gary J. Tucker

  • 1Department of Psychiatry and Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, USA.

Convulsive Therapy
|January 1, 1985
PubMed
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Bilateral electroconvulsive therapy (ECT) may impact attention. Cognitive tests showed ECT patients experienced significant changes in letter cancellation tasks compared to controls after three treatments.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psychiatry

Background:

  • Electroconvulsive therapy (ECT) is a medical treatment most often used for patients with severe major depression or bipolar disorder that has not responded to other treatments.
  • Cognitive side effects, particularly memory impairment, are a concern with ECT.
  • Understanding the temporal dynamics of cognitive changes is crucial for patient management.

Purpose of the Study:

  • To characterize the onset and evolution of early cognitive changes associated with bilateral electroconvulsive therapy (ECT).
  • To compare the cognitive performance of patients undergoing bilateral ECT with a psychiatric control group.

Main Methods:

  • A battery of daily administered neuropsychological tests was used, including Digit Symbol, spokes, letter cancellation, and short-term memory tests.

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  • 13 patients receiving bilateral ECT and 16 psychiatric control patients participated.
  • Performance was compared between the ECT and control groups over the course of treatment.

    • Main Results:

    • Both the ECT and control groups showed improvement across most cognitive tests.
    • A significant divergence in performance on letter cancellation tests was observed between the ECT patients and controls after three ECT sessions (p < 0.005).
    • This specific finding suggests a potential impact on attentional processes.

    Conclusions:

    • Bilateral ECT may induce alterations in attentional processes, as indicated by changes in letter cancellation task performance.
    • Early cognitive changes associated with ECT can be detected using daily neuropsychological assessments.
    • Further research is warranted to fully elucidate the cognitive effects of ECT and inform clinical practice.