Non-paralytic motor disturbances and speech disorders: the role of the supplementary motor area.
Open Access
- 1 November 1983
- journal article
- case report
- Published by BMJ in Journal of Neurology, Neurosurgery & Psychiatry
- Vol. 46 (11) , 1052-1054
- https://doi.org/10.1136/jnnp.46.11.1052
Abstract
A right-handed patient with a lesion demonstrated by CT to involve the right medial frontal cortex is described. He exhibited a strong contralateral grasp reflex, motor perseveration and the presence of purposeful movements that appeared to be dissociated from conscious volition. In addition, there was a disorder of speech consisting of a lack of spontaneous speech production, with preserved ability to imitate. It is suggested that these disorders are due to damage to the supplementary motor area.Keywords
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