Sensory perception in Parkinson disease

Arch Neurol. 1997 Apr;54(4):450-4. doi: 10.1001/archneur.1997.00550160080020.


Objective: To determine whether there is a complex sensory disturbance that may be contributing to the motor deficit in patients with Parkinson disease.

Design: Comparison of performance by patients and healthy, age- and sex-matched subjects in tests of various sensory functions.

Setting: The Center for Human Performance and Testing at a university hospital and research center.

Participants: Ten subjects with Parkinson disease and 10 control subjects matched for age and sex.

Main outcome measure: Performance on 4 subjects of the Sensory Integration and Praxis Test: finger identification, graphesthesia, localization of tactile stimuli, and kinesthesia.

Results: Data were analyzed using paired t tests for ratio data and the paired Wilcoxon test for ordinal data. Patients with Parkinson disease performed significantly worse (P = .001) than the control patients on the test of kinesthesia. There were no significant differences between the 2 groups on the other subtests.

Conclusions: Without visual guidance, patients with Parkinson disease had more difficulty in perceiving the extent of a movement made to a target away from the body, a task requiring reliance on proprioceptive feedback. Parkinsonian patients had no more difficulty than controls in making movements to a target on the surface of the body when they could use tactile sensations. Movement difficulties in patients with Parkinson disease may relate in part to a decrease in proprioception. Activities that enhance kinesthetic awareness may be an important adjunct to the treatment of these patients.

MeSH terms

  • Humans
  • Kinesthesis
  • Motor Activity
  • Motor Skills
  • Parkinson Disease / physiopathology*
  • Sensation Disorders / physiopathology*
  • Touch
  • Vision, Ocular