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Executive function in fibromyalgia: Comparing subjective and objective measures.

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Fibromyalgia patients show executive dysfunction, but mood disturbances significantly impact these cognitive deficits. Working memory and inhibition remain impaired, regardless of mood.

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Area of Science:

  • Neuroscience
  • Psychology
  • Clinical Medicine

Background:

  • Evidence suggests executive dysfunction in fibromyalgia, but study results are inconsistent.
  • This study investigates executive performance differences between fibromyalgia patients and controls.
  • The influence of mood on cognitive test results and the relationship between subjective and objective measures are examined.

Purpose of the Study:

  • To compare executive functioning in fibromyalgia patients versus healthy controls using subjective and objective measures.
  • To analyze the impact of mood (depression and anxiety) on cognitive performance.
  • To explore associations between subjective (BRIEF-A) and objective cognitive test results.

Main Methods:

  • 82 fibromyalgia patients and 42 healthy controls were assessed.
  • Subjective executive function was measured using the Behavioral Rating Inventory of Executive Function - Adult Version (BRIEF-A).
  • Objective cognitive tests assessed executive functions, depression, and anxiety.

Main Results:

  • Fibromyalgia patients reported greater executive difficulties (BRIEF-A).
  • After mood adjustment, only working memory and metacognition/global executive composite showed differences.
  • Objective tests revealed worse performance in fibromyalgia patients, but this diminished after mood adjustment, with only Stroop Test interference remaining significant.

Conclusions:

  • Fibromyalgia is associated with executive dysfunction, largely explained by mood disturbances.
  • Working memory (BRIEF-A) and inhibition (Stroop Test) impairments persist after mood adjustment.
  • Subjective and objective measures offer complementary insights into executive functioning.