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Case Reports
. 1999 Jun;66(6):776-8.
doi: 10.1136/jnnp.66.6.776.

Developmental stuttering and Parkinson's disease: the effects of levodopa treatment

J M Anderson  1 , J D Hughes, L J Rothi, G P Crucian, K M Heilman
Affiliations
Case Reports

Developmental stuttering and Parkinson's disease: the effects of levodopa treatment

J M Anderson et al. J Neurol Neurosurg Psychiatry. 1999 Jun.

Abstract

The effects of dopamine on developmental stuttering was studied in a 44 year old man with developmental stuttering and Parkinson's disease during three levodopa "on" periods and three "off" periods. When compared with the "off" periods, during the "on"' periods he demonstrated an increase of speech dysfluencies. These findings lend support to the dopamine hypothesis of developmental stuttering.

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