Dysprosody in Cantonese Parkinson's Disease: Stimuli Effects
01 Jan 2008-
About: The article was published on 2008-01-01 and is currently open access. It has received 1 citations till now. The article focuses on the topics: Dysprosody & Parkinson's disease.
Citations
More filters
References
More filters
TL;DR: Thirty-second speech samples were studied of at least 30 patients in each of 7 discrete neurologic groups, each patient unequivocally diagnosed as being a representative of his diagnostic group, leading to results leading to these conclusions.
Abstract: Thirty-second speech samples were studied of at least 30 patients in each of 7 discrete neurologic groups, each patient unequivocally diagnosed as being a representative of his diagnostic group. Three judges independently rated each of these samples on each of 38 dimensions of speech and voice using a 7-point scale of severity. Computer analysis based on the means of the three ratings on each patient on each dimension yielded results leading to these conclusions: (1) Speech indeed follows neuroanatomy and neurophysiology. There are multiple types or patterns of dysarthria, each mirroring a different kind of abnormality of motor functioning. (2) These patterns of dysarthria can be differentiated; they sound different. They consist of definitive groupings of certain dimensions of speech and voice, deviant to distinctive degrees. (3) Five types of dysarthria were delineated: flaccid dysarthria (in bulbar palsy), spastic dysarthria (in pseudobulbar palsy), ataxic dysarthria (in cerebellar disorders), hypokine...
1,179 citations
TL;DR: Correlation matrices were used to demonstrate co-occurrence of deviant speech dimensions observed and led to the emergence of eight distinctive clusters of dysfunction, which may serve as hypotheses for more accurate physiologic and neurophysiologic measurements.
Abstract: Correlation matrices were used to demonstrate co-occurrence of deviant speech dimensions observed. Application of this technique led to the emergence of eight distinctive clusters of dysfunction. Each of seven neurologic disorders studied had its own unique group or pattern of clusters. However, any one cluster emerged in and was shared by more than one disorder. Inspection of the dimensions present in a cluster permitted giving the cluster a logically determined name based usually on the defective physiology responsible for the cluster. Knowledge of the neuromuscular characteristics of each disorder led to deductions concerning the neuromuscular substrate for each cluster. Intercluster correlations yielded clues concerning co-occurrence of certain neuromuscular defects. Further inspection led to identification of the probable neuromuscular bases of individual deviant speech dimensions. These conclusions may serve as hypotheses for more accurate physiologic and neurophysiologic measurements to further del...
701 citations
TL;DR: Voice was found to be the leading deficit, most frequently affected and impaired to a greater extent than other features in the initial stages, and articulation was the most frequently impaired feature at the lowest level of performance.
Abstract: This study classifiedspeech impairment in 200 patients with Parkinson’ s disease (PD) into five levels of overall severity and described the corresponding type (voice, articulation, fluenc y) and extent (rated on a five-point scale) of impairment for each level. From two-minute conversational speech samples, parameters of voice, fluency and articulation were assessed by two trained-raters. Voice was found to be the leading deficit, most frequently affected and impaired to a greater extent than other features in the initial stages. Articulatory and fluenc y deficits manifested later, articulatory impairment matching voice impairment in frequency and extent at the ‘Severe’ stage. At the finalstage of ‘Profound’ impairment, articulation was the most frequently impaired feature at the lowest level of performance. This study illustrates the prominence of voice and articulatory speech motor control deficits,and draws parallels with deficitsof motor set and motor set instability in skeletal controls of gait and handwriting.
528 citations
TL;DR: For instance, the authors used auditory-perceptual judgment as a central tool for classifying and measuring a variety of disorders of communication, including speech-language pathology, speech pathology, and speech pathology disorders.
Abstract: Speech-language pathology relies on auditory-perceptual judgment as a central tool for classifying and measuring a variety of disorders of communication. Over the history of the field, a great deal...
387 citations