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Neuropsychological Dysfunction in Chronic Fatigue Syndrome and the Relation between Objective and Subjective Findings

Rasouli, Omid; Gotaas, Merethe Otelie Eide; Stensdotter, Ann-Katrin; Landrø, Nils Inge; Dåstøl, Pål; Skovlund, Eva; Fors, Egil Andreas
Journal article, Peer reviewed
Submitted version
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Åpne
Rasouli (1.462Mb)
Permanent lenke
http://hdl.handle.net/11250/2600865
Utgivelsesdato
2019
Metadata
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  • Institutt for psykisk helse [519]
  • Institutt for samfunnsmedisin og sykepleie [1760]
  • Institutt for sirkulasjon og bildediagnostikk [1045]
  • Publikasjoner fra CRIStin - NTNU [20734]
Originalversjon
10.1037/neu0000550
Sammendrag
Objective: This study aimed to explore the relationship between self-reported cognitive difficulties, objective neuropsychological test performances, and subjective health complaints in chronic fatigue syndrome (CFS) and to examine the degree of impaired cognitive functions. Method: A total of 236 consecutively recruited outpatients, aged between 18 and 62 years, completed the tests. Self-administered questionnaires were used for assessing fatigue, pain, depression, anxiety and subjective cognitive complaints (Everyday Memory Questionnaire, EMQ). Also, neuropsychological tests, i.e., Stroop I-IV, CVLT-II learning/delay, WAIS-III L-N Sequencing, and PASAT were performed to examine whether these objective measures correlated with subjective complaints and were compared with normative data. Results: There was a trend of association (p<0.05) between unadjusted EMQ with Stroop IV (inhibition and shifting attention), CVLT-II learning/delay (verbal learning and memory) and WAIS-III L-N Sequencing (working memory), but none were statistically significant at the 0.001 level. EMQ was positively associated with fatigue, pain, and depression (p<0.001). PASAT (working memory) was negatively associated with pain (p<0.001). Between 21% and 38% of the patients performed below the 1.5 SD cut-off for clinically significant impairment on the Stroop tests. Conclusion: The self-reported cognitive performance was not strongly associated with the objective cognitive performances on any domains in patients with CFS. Patients with higher fatigue, pain and depression levels reported greater subjective cognitive difficulties, also higher pain related to lower objective working memory function. The CFS patients had problems mainly in domains of psychomotor speed and attention measured by the objective neuropsychological tests.
 
Neuropsychological Dysfunction in Chronic Fatigue Syndrome and the Relation between Objective and Subjective Findings
 
Utgiver
American Psychological Association
Tidsskrift
Neuropsychology

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