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Related Experiment Videos

Working memory impairment among persons with chronic progressive multiple sclerosis

J Grigsby1, S D Ayarbe, N Kravcisin

  • 1Center for Health Services Research, University of Colorado Health Sciences Center, Denver 80222.

Journal of Neurology
|January 1, 1994
PubMed
Summary

Chronic progressive multiple sclerosis (MS) patients showed significant short-term memory (STM) impairments. These working memory deficits may stem from central information processing issues in MS.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Multiple Sclerosis (MS) is a chronic, progressive neurological disease.
  • Cognitive decline, particularly memory impairment, is a common symptom in MS patients.
  • Previous research indicates information processing deficits and prefrontal dysfunction in MS.

Purpose of the Study:

  • To investigate short-term memory (STM) and working memory performance in patients with chronic progressive MS.
  • To identify potential correlations between STM, working memory, and central processing capacity in MS patients.

Main Methods:

  • A cohort of 23 chronic progressive MS patients with recent disease activity was assessed.
  • A matched control group (age, education) was included for comparison.
  • Standardized neuropsychological tests were administered, including digit span, Brown-Peterson test, and logical memory scales.

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Main Results:

  • MS patients demonstrated significant impairments in most STM measures compared to controls.
  • No significant differences were observed on the Mini Mental State Examination.
  • Performance on tests of central processing capacity correlated significantly with STM measures.

Conclusions:

  • Working memory is significantly impaired in chronic progressive MS patients.
  • Central information processing deficits may underlie cognitive decline in MS.
  • These findings highlight the impact of MS on memory and cognitive functions.