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The aim of this study was to test the hypothesis of a fundamental impairment of vocal pace performance in Parkinson's disease (PD) based on a syllable repetition paradigm and the influence of levodopa and deep brain stimulation of the subthalamic nucleus (STN-DBS). Twenty-two PD patients under stable dopaminergic medication, 14 patients with STN-DBS, and 30(More)
Alterations of speech rate and rhythm are well-known features in parkinsonian patients suffering from hypokinetic dysarthria and are thought to be induced by complex dysfunction of planning, preparing and executing of motor speech sequences. Since speech can be subdivided down to the level of single utterances, the aim of our study was to test the(More)
BACKGROUND In Parkinson's disease (PD), abnormalities of speech rate have been observed in spontaneous speech, reading tasks and syllable repetition tasks. Impaired temporal speech patterns have been contributed to dysfunctional basal ganglia circuits, but little is known about a possible differential role of right and left basal ganglia concerning speech(More)
Parkinsonian speakers show a tendency to articulatory acceleration and have difficulties to keep the steady pace of repeated syllables. The aim of this study was to analyse the stability of motor speech performance based upon a syllable repetition paradigm during the course of disease to find a potential marker of disease progression in Parkinson's disease(More)
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