Reaction Times in Parkinson Disease

Academic Article


  • Ten hypokinetic parkinsonian patients and ten age- and sex-matched controls were tested, using reaction times with and without a warning signal. The time difference between each was used as a measure of phasic arousal. Both groups' reaction times improved with a warning signal, but there were no differences in reaction-time reduction between the parkinsonian and control groups. These results suggest either that hypokinesia in parkinsonism is not caused by an arousal defect or it is caused by a defect in the “autoevoked” arousal system. © 1976, American Medical Association. All rights reserved.
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • Heilman KM; Bowers D; Watson RT; Greer M
  • Start Page

  • 139
  • End Page

  • 140
  • Volume

  • 33
  • Issue

  • 2