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Related Experiment Videos

Neuroleptic-induced marching-in-place.

L Frost1, S Lal, R Yassa

  • 1Douglas Hospital Research Centre, Verdun, Quebec, Canada.

Acta Psychiatrica Scandinavica
|January 1, 1989
PubMed
Summary

Marching-in-place (MIP), a movement disorder, affected 9% of psychiatric patients but no controls. It was linked to other movement issues and may be treatable with anticholinergic drugs.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Movement Disorders

Background:

  • Marching-in-place (MIP) is an unusual motor phenomenon.
  • Its prevalence and associations in psychiatric populations are not well-defined.

Purpose of the Study:

  • To determine the prevalence of MIP in chronically hospitalized psychiatric patients.
  • To explore associations between MIP and other movement disorders.
  • To assess potential quantification methods and preliminary treatment responses for MIP.

Main Methods:

  • Observational study comparing psychiatric patients and hospital staff controls.
  • Prevalence calculation for MIP.
  • Clinical assessment for associated movement disorders like tardive dyskinesia and parkinsonism.
  • Exploration of anticholinergic agent effects.

Main Results:

  • MIP was observed in 9% of 133 psychiatric patients, with no cases in 60 controls.
  • MIP was consistently associated with tardive dyskinesia or parkinsonism, or both.
  • Quantification by steps per minute was found to be reliable.
  • Anticholinergic agents showed mixed effects, improving MIP in some patients while worsening it in others.

Conclusions:

  • MIP is a distinct phenomenon observed in a subset of psychiatric patients, linked to specific movement disorders.
  • Quantifying MIP by steps per minute offers an objective measure for research.
  • Anticholinergic medications have variable efficacy in treating MIP.

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