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. 2005 May-Jun;38(3):187-96.
doi: 10.1016/j.jcomdis.2004.09.001. Epub 2004 Nov 10.

The effects of levodopa on word intelligibility in Parkinson's disease

Miet De Letter  1 , Patrick Santens, John Van Borsel
Affiliations

The effects of levodopa on word intelligibility in Parkinson's disease

Miet De Letter et al. J Commun Disord. 2005 May-Jun.

Abstract

Dysarthria is a common manifestation in patients with idiopathic Parkinson's disease. This study investigated the effects of levodopa on intelligibility in patients with Parkinson's disease. Ten participants were tested during on- and off-states using the Yorkston and Beukelman intelligibility test (1980). Intelligibility as scored by a panel of speech therapists was significantly improved in the on-condition. No correlation was found, however, between intelligibility and overall severity of the disease or severity of the motor problems. EDUCATIONAL OUTCOMES: As a result of this activity the participant will be able to discuss the effects of levodopa on intelligibility in patients with Parkinson's disease.

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