Dysarthria

About: Dysarthria is a research topic. Over the lifetime, 2402 publications have been published within this topic receiving 56554 citations.

Rhythm in the speech of a person with right hemisphere damage: Applying the pairwise variability index

Abstract: Although several aspects of prosody have been studied in speakers with right hemisphere damage (RHD), rhythm remains largely uninvestigated. This study compares the rhythm of an Australian English speaker with right hemisphere damage (due to a stroke, but with no concomitant dysarthria) to that of a neurologically unimpaired individual. The speakers' rhythm is compared using the pairwise variability index (PVI) which allows for an acoustic characterization of rhythm by comparing the duration of successive vocalic and intervocalic intervals. A sample of speech from a structured interview between a speech and language therapist and each participant was analysed. Previous research has shown that speakers with RHD may have difficulties with intonation production, and therefore it was hypothesized that there may also be rhythmic disturbance. Results show that the neurologically normal control uses a similar rhythm to that reported for British English (there are no previous studies available for Australian Engl...

Study of the Automatic Detection of Parkison’s Disease Based on Speaker Recognition Technologies and Allophonic Distillation

Abstract: The use of new tools to detect Parkinson’s Disease (PD) from speech articulatory movements can have a considerable impact in the diagnosis of patients. In this study, a novel approach involving speaker recognition techniques with allophonic distillation is proposed and tested separately in four parkinsonian speech databases (205 patients and 186 controls in total). This new scheme provides values between 72% and 94% of accuracy in the automatic detection of PD, depending on the database, and improvements up to 9% respect to baseline techniques. Results not only point towards the importance of the segmentation of the speech for the differentiation of parkinsonian and control speakers but confirm previous findings about the relevance of plosives and fricatives in the detection of parkinsonian dysarthria.

The lack of RCTs on dysarthria intervention does not necessarily indicate there is no evidence to guide practice1

Abstract: Is there any evidence from randomized, controlled trials on the efficacy of speech and language therapy interventions for adults with dysarthria following non-progressive acquired brain injury? 1 A...

A case of crossed dextral aphasia characterized by agrammatism.

Abstract: A case of crossed dextral aphasia characterized by agrammatism was reported. The patient,55-year-old purely right-handed man, a teacher of Japanese, developed left hemiparesis, slight left unilateral spatial neglect and aphasia because of cerebral infarction. CT scan displayed a large hypodense area in subcortical region of the right hemisphere. His speech showed slight dysarthria, literal paraphasias and agrammatism. The characteristics of the agrammatic speech were as follows : dropping out of grammatical morphemes (including joshi, auxiliary verbs and conjugation of verbs), good word-findings, lots of pauses in spite of long and well-constructed sentences. The writing had some literal paragraphias and agrammatism such as in speech. The way of writing was disorderly. Grammatical morphemes and verbs in part were regarded as representing speaker's thought and attitude essentially, and in case a speaker's tension to maintain his intention of speech was reduced, they would be apt to be dropped. We pointed out that the mechanism of writing disturbance of this case was different from non-crossed left hemisphere damaged aphasic's, and that such aphasic symptom as this case might represent a type peculiar to crossed dextral aphasia.