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[Tic disorders]

S Miyamoto1

  • 1Institute of Special Education, University of Tsukuba.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|November 1, 1993
PubMed
Summary

Tics are involuntary movements or vocalizations that can be temporarily suppressed. Investigating their neurological and psychiatric origins is crucial for understanding these common childhood disorders.

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Area of Science:

  • Neurology
  • Psychiatry

Context:

  • Tics are sudden, brief, involuntary movements or vocalizations.
  • They are characterized by the ability to be suppressed for short periods.
  • Tic disorders include transient tic, chronic motor or vocal tic, and Tourette's disorder, viewed as a spectrum.

Purpose:

  • To explore the pathogenesis of tic symptoms.
  • To understand the classification and characteristics of tic disorders.
  • To investigate the potential neurological and psychiatric underpinnings of tics.

Summary:

  • Tics are involuntary, rapid, and stereotyped movements or vocalizations.
  • Tic disorders, classified into transient tic, chronic tic, and Tourette's disorder, represent a spectrum.
  • These disorders are more prevalent in males and typically appear by puberty, with a suggested autosomal dominant inheritance in Tourette's disorder.

Impact:

  • Highlights the importance of studying tic pathogenesis due to their complex neurological and psychiatric nature.
  • Provides a classification framework for tic disorders.
  • Suggests potential genetic factors in Tourette's disorder.

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