synkinesis

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Introduction

Involuntary movement accompanying a voluntary one.

For example:

  • movmement of the corner of the mouth when a person closes the eye

Pathology

  • two or more ndependently innervated muscles with either simultaneous or coordinated movements

References

  1. Diagnostic and Statistical Manual of Mental Disorders, 4th ed., Text Revision, DSM-IV, American Psychiatric Association, Washington DC, 1994