## Abstract ## Background: The reliability and applicability of published diagnostic criteria for psychogenic movement disorders (PMDs) have never been examined. ## Methods: Eight movement disorder and six general neurologists rated 14 patients diagnosed with PMD and 14 patients diagnosed with o
Electrophysiology of the corticomotoneurone pathways in patients with movement disorders
β Scribed by P. D. Thompson; J. P. R. Dick; B. L. Day; J. C. Rothwell; A. Berardelli; T. Kachi; C. D. Marsden
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 316 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0885-3185
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β¦ Synopsis
The corticomotoneurone pathways were examined in 21 patients with movement disorders, using the technique of percutaneous electrical stimulation of the motor cortex. Conduction in these pathways was assessed by measuring the latency to onset of electromyographic activity in the muscles of the upper limb after cortical stimulation. In all patients [five with primary (idiopathic) torsion dystonia and two with secondary (symptomatic) hemidystonia, seven with Huntington's disease, four with essential tremor, and three with Parkinson's disease] central mqtor conduction was normal. This and other evidence suggests that the origin of the disorder of movement in these conditions lies in the delivery of abnormal motor commands to a normal corticomotoneuronal system.
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## Abstract Patients admitted to movement disorders outpatient unit at a university hospital between January 2002 and June 2007 were screened for psychogenic movement disorders (PMDs). Out of 1,743 patients, 49 patients (2.8%), including four children, were diagnosed to have PMDs. Women to men rati