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Related Experiment Videos

Cognitive function in fibromyalgia patients.

D C Park1, J M Glass, M Minear

  • 1Department of Psychology, University of Michigan, Ann Arbor 48109, USA.

Arthritis and Rheumatism
|October 11, 2001
PubMed
Summary

Fibromyalgia patients exhibit significant cognitive deficits, particularly in memory and vocabulary, which correlate with pain and are not age-appropriate. These impairments are not global, as processing speed remains intact.

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Area of Science:

  • Neuroscience
  • Rheumatology
  • Psychology

Background:

  • Fibromyalgia (FM) is a chronic condition characterized by widespread pain, fatigue, and cognitive difficulties.
  • Previous research suggests cognitive impairment in FM, but the specific nature and relation to aging models require further investigation.

Purpose of the Study:

  • To assess cognitive deficits in fibromyalgia patients.
  • To determine if these cognitive abnormalities align with patterns observed in cognitive aging.

Main Methods:

  • Three groups were studied: FM patients, age-matched controls, and older controls.
  • Cognitive functions including processing speed, working memory, recall, recognition, verbal fluency, and vocabulary were measured.
  • Correlations between cognitive performance and FM symptoms (pain, fatigue, depression, anxiety) were analyzed.

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Main Results:

  • Fibromyalgia patients showed poorer performance than controls in most cognitive areas, except processing speed.
  • Cognitive deficits in FM patients were comparable to those of older controls, with notable exceptions in processing speed and vocabulary.
  • Impaired cognitive function correlated with pain, not depression or anxiety, and FM patients' memory complaints were validated by poor performance.

Conclusions:

  • Fibromyalgia is associated with significant cognitive impairments, particularly in memory and vocabulary, which are not age-appropriate.
  • The findings suggest that cognitive deficits in FM are not global, as processing speed remains intact.
  • The study validates the subjective memory complaints of FM patients, linking them to objective cognitive performance deficits.