Functional tremor
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Functional tremor. This accounts for > 50% of psychogenic movement disorders. The mean onset age is 50 years. Fully referenced neurology checklist.
Demographic features
- This accounts for > 50% of psychogenic movement disorders
- The mean onset age is 50 years
- There is a female preponderance: 70-75% of cases are women
Risk factors features
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Course
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Characteristics
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Associated disorders
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Positive entrainment test
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Positive co-activation test
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Other positive tests
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Treatment
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References
- Bhatia KP, Schneider SA. Psychogenic tremor and related disorders. J Neurol 2007; 254:569-574.
- McKeon A, Ahlskog JE, Bower JH, Josephs KA, Matsumoto JY. Psychogenic tremor: long-term prognosis in patients with electrophysiologically confirmed disease. Mov Disord 2009; 24:72-76.
- Kenney C, Diamond A, Mejia N, Davidson A, Hunter C, Jankovic J. Distinguishing psychogenic and essential tremor. J Neurol Sci 2007; 263:94-99.
- McKeon A, Ahlskog JE, Matsumoto JY. Psychogenic tremor occurring after deep brain stimulation surgery for essential tremor. Neurology 2008; 70:1498-1499.
- Boogers A, Fasano A. Functional movement disorders and deep brain stimulation: a review. Neurol Clin Pract 2025; 15:e200367.
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