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Related Experiment Videos

Executive dysfunction in subcortical ischaemic vascular disease.

J H Kramer1, B R Reed, D Mungas

  • 1San Francisco Medical Center, University of California, 401 Parnassus Avenue, San Francisco, CA 94143, USA. kramer@itsa.ucsf.edu

Journal of Neurology, Neurosurgery, and Psychiatry
|January 18, 2002
PubMed
Summary

Subcortical lacunes, often linked to vascular disease, are associated with subtle executive dysfunction and visual memory decline in non-demented individuals. These cognitive impairments suggest impacts on subcortical-frontal brain circuits.

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Area of Science:

  • Neuroscience
  • Neurology
  • Cognitive Psychology

Background:

  • Executive dysfunction is observed in subcortical-frontal pathology, even without dementia.
  • Subcortical lacunes are small lesions in the white matter of the brain.

Purpose of the Study:

  • To investigate executive functioning impairments in non-demented patients with subcortical lacunes.
  • To determine if subcortical lacunes are associated with specific cognitive deficits.

Main Methods:

  • Cross-sectional study comparing 27 older controls with 12 non-demented patients having subcortical lacunes.
  • Neuropsychological testing included the Stroop interference test, California card sorting test, and Mattis dementia rating scale (initiation-perseveration).

Main Results:

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  • Patients with lacunes showed deficits in visual memory, executive functioning (Stroop interference, California card sort, initiation-perseveration), but not verbal memory, language, or spatial ability.
  • Executive measure decline correlated with white matter signal hyperintensity extent, not the number of lacunes.

Conclusions:

  • Subcortical ischemic vascular disease is linked to subtle executive and visual memory declines in non-demented individuals.
  • Cognitive impairment patterns align with subcortical-frontal circuit dysfunction models.