Dual-task performance in dysexecutive and nondysexecutive patients with a frontal lesion

Neuropsychology. 1997 Apr;11(2):187-94. doi: 10.1037//0894-4105.11.2.187.


Patients with defined frontal lobe lesions were assigned to 1 of 2 groups based on whether they showed a behaviorally assessed dysexecutive syndrome or were behaviorally normal. All participants were tested on dual-task performance and on 2 tasks assumed to measure frontal lobe function, the Wisconsin Card Sorting Test and verbal fluency. The dysexecutive group differed significantly from the nondysexecutive in showing impaired capacity for dual-task coordination, but there were no significant differences on the Wisconsin Card Sorting Test and verbal fluency. Results are interpreted in terms of a multicomponent central executive, whose function is linked to, but not coterminous with, the operation of the frontal lobes.

MeSH terms

  • Adult
  • Aged
  • Behavior / physiology*
  • Brain Injuries / physiopathology
  • Cerebrovascular Disorders / physiopathology
  • Female
  • Frontal Lobe / physiopathology*
  • Humans
  • Male
  • Middle Aged
  • Psychiatric Status Rating Scales
  • Task Performance and Analysis*