Topic
Dysarthria
About: Dysarthria is a research topic. Over the lifetime, 2402 publications have been published within this topic receiving 56554 citations.
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06 Apr 2003
TL;DR: Dysarthric speech can, in the best case, be modified only at the short-term spectral level to improve intelligibility from 68% to 87%.
Abstract: Dysarthria is a motor speech impairment affecting millions of people. Dysarthric speech can be far less intelligible than that of non-dysarthric speakers, causing significant communication difficulties. The goal of our work is to understand the effect that certain modifications have on the intelligibility of dysarthric speech. These modifications are designed to identify aspects of the speech signal or signal processing that may be especially relevant to the effectiveness of a system that transforms dysarthric speech to improve its intelligibility. A result of this study is that dysarthric speech can, in the best case, be modified only at the short-term spectral level to improve intelligibility from 68% to 87%. A baseline transformation system using standard technology, however, does not show improvement in intelligibility. Prosody also has a significant (p<0.05) effect on intelligibility.
46 citations
TL;DR: Speech features were perceptually analyzed in two groups of children and hypernasality was a prominent characteristic and resembled flaccid dysarthria in adults, suggesting that acquired childhood Dysarthria needs a proper classification.
46 citations
TL;DR: The study attempted to determine what groupings of speech dimensions describe the ataxic speech and if the subjects could be grouped by their speech symptoms, and showed that more than one pattern of dysarthria could occur in one family.
46 citations
TL;DR: In this article, a companion paper describes three extensions to a classification system for paediatric speech sound disorders termed the Speech Disorders Classification System (SDCS), which uses perceptual and acoustic data reduction methods to obtain information on a speaker's speech, prosody, and voice.
Abstract: A companion paper describes three extensions to a classification system for paediatric speech sound disorders termed the Speech Disorders Classification System (SDCS). The SDCS uses perceptual and acoustic data reduction methods to obtain information on a speaker's speech, prosody, and voice. The present paper provides reliability estimates for the two perceptual methods (narrow phonetic transcription; prosody-voice coding) and the acoustic analysis methods the SDCS uses to describe and classify a speaker's speech competence, precision, and stability. Speech samples from 10 speakers, five with significant motor speech disorder and five with typical speech, were re-measured to estimate intra-judge and inter-judge agreement for the perceptual and acoustic methods. Each of the speakers completed five speech tasks (total = 50 datasets), ranging in articulatory difficulty for the speakers, with consequences for the difficulty level of data reduction. Point-to-point percentage of agreement findings for the two perceptual methods were as high or higher than reported in literature reviews and from previous studies conducted within the laboratory. Percentage of agreement findings for the acoustics tasks of segmenting phonemes, editing fundamental frequency tracks, and estimating formants ranged from values in the mid 70% to 100%, with most estimates in the mid 80% to mid 90% range. Findings are interpreted as support for the perceptual and acoustic methods used in the SDCS to describe and classify speakers with speech sound disorders.
46 citations
TL;DR: Recent studies of aphasia provide clues regarding language recovery poststroke, but further studies of the role of the ipsi and contralateral inferior frontal gyrus are necessary, and should be longitudinal.
Abstract: Purpose of reviewWe review recent important papers pertaining to acquired aphasia, apraxia of speech and dysarthria with special attention to clinically significant work published in the last 12 months.Recent findingsThe role of the contralateral inferior frontal gyrus in language recovery after str
46 citations