title: Cognitive functioning in post-polio patients with and without general fatigue.
abstract: OBJECTIVE
  This study examined 2 main hypotheses. First, whether patients with post-polio suffering from general fatigue (n=10) demonstrate cognitive deficits compared with patients with post-polio without general fatigue (n=10). Secondly, by systematically varied test order administration we examined whether such differences varied as a function of increasing cognitive load during cognitive testing.
  
  
  METHODS
  Twenty patients diagnosed with post-polio syndrome, 10 with general fatigue and 10 without fatigue.
  
  
  RESULTS
  Neither of the 2 hypotheses were confirmed. The group with general fatigue reported elevated levels of depression. However, no systematic association between level of depression and cognitive performance could be detected.
  
  
  CONCLUSIONS
  The results of this study provide no evidence that general fatigue or cognitive load affects cognitive functioning in post-polio.
authors.affiliation: Department of Public Health Science, Karolinska Institutet, Stockholm, Sweden.
authors.forename: Gunilla
authors.initials: G
authors.lastname: Ostlund
authors.forename: Kristian
authors.initials: K
authors.lastname: Borg
authors.forename: Ake
authors.initials: A
authors.lastname: Wahlin
mesh_terms: D000328:Adult; D000368:Aged; D003071:Cognition; D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology*; D005221:Fatigue / Q000209:etiology / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D016262:Postpoliomyelitis Syndrome / Q000150:complications / Q000523:psychology*; D011795:Surveys and Questionnaires