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Repetitive speech phenomena in Parkinson's disease
T Benke1, C Hohenstein, W Poewe
1University Clinic of Neurology, Anichstrasse 35, A-6020 Innsbruck, Austria. thomas.benke@uibk.ac.at
Journal of Neurology, Neurosurgery, and Psychiatry
|August 17, 2000
Summary
Repetitive speech phenomena, including stuttering-like and palilalia, are common in advanced Parkinson's disease, indicating a motor speech control deficit. These speech changes are linked to disease progression, not necessarily dementia.
Area of Science:
- Neurology
- Speech-Language Pathology
Background:
- Repetitive speech phenomena are poorly understood in neurological disorders.
- These speech iterations occur in conditions like Parkinson's disease, vascular dementia, and Wilson's disease.
Purpose of the Study:
- Investigate repetitive speech phenomena in Parkinson's disease.
- Describe morphology, prevalence, and relation to clinical/neuropsychological data.
Main Methods:
- Screened 24 advanced and 29 mid-stage Parkinson's disease patients.
- Assessed speech phenomena during on/off medication states.
- Conducted neuropsychological screening.
Main Results:
- Repetitive speech phenomena (palilalia-like, stuttering-like) found in 28.3% of patients.
- Prevalence higher in advanced disease with fluctuating motor response.
- Occurred more in effortful speech tasks.
Conclusions:
- Repetitive speech phenomena in Parkinson's disease are linked to advanced disease, not necessarily dementia.
- Suggests a motor speech control deficit, potentially influenced by linguistic factors.
- Repetitions may represent a distinct speech disorder related to Parkinson's progression.