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Executive dysfunction in geriatric depression.

Kathryn A Lockwood1, George S Alexopoulos, Wilfred G van Gorp

  • 1Joan and Sanford I. Weill College of Medicine, Cornell University, New York, USA.

The American Journal of Psychiatry
|July 2, 2002
PubMed
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Older adults with depression show significant executive dysfunction, particularly in tasks requiring problem-solving and response initiation. This highlights the need for targeted interventions for geriatric depression.

Area of Science:

  • Neuropsychology
  • Gerontology
  • Psychiatry

Background:

  • Geriatric depression is a significant public health concern.
  • Executive dysfunction is a common symptom in depression.
  • The impact of advanced age on depression-related executive dysfunction requires further characterization.

Purpose of the Study:

  • To characterize the neuropsychological profile of geriatric depression.
  • To investigate if executive dysfunction is more pronounced in older adults with depression.

Main Methods:

  • Compared attention and executive functioning in 40 depressed adults and 40 healthy controls.
  • Grouped participants into two age categories: 20-60 years and > or =61 years.
  • Hypothesized greater executive impairment in older depressed adults.

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Main Results:

  • Found a significant age-depression interaction for executive functioning tasks.
  • No age-depression interaction was observed for attention tasks.
  • Older depressed adults exhibited slower psychomotor speed and poorer performance on set-shifting, problem-solving, and response initiation tasks.

Conclusions:

  • Late-life depression is associated with substantial executive functioning impairments.
  • Findings may inform neuroimaging studies on geriatric depression pathophysiology.
  • Early identification of attentional and executive deficits can guide compensatory strategies to improve outcomes.