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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TL;DR: Acoustic analysis of pitch and intensity may show impairments of prosodic production after severe closed head injury, which may be useful in rehabilitation planning and also reflect the eventual cognitive and behavioural deficits of patients.
Abstract: Objectives—Neurological speech disorders (dysarthria and dysprosody) are known to be frequent sequelae after severe closed head injury. These disorders may dramatically alter communicative intent and accentuate social isolation. The aim was to provide an instrumental evaluation for prosodic production in a group of patients with severe closed head injury and to determine the correlations between prosodic production and neurobehavioural status. Methods—Fifteen patients, at the subacute stage after severe closed head injury, were studied and compared with 11 controls, matched for age, sex, and duration of education. Each subject was required to read aloud a French sentence “Je m’en vais samedi matin” (I am leaving saturday morning) under six diVerent prosodic intonations (neutral, aYrmation, interrogation, happiness, sadness, anger). The recorded sentences were analysed using a sound signal analysis software (Signalyse) allowing the measurement of signal intensity and fundamental frequency. Statistical analyses were carried out using repeated measures analysis of variance (ANOVA). Results—Patients with closed head injury were significantly less able than controls to modulate speech output (pitch and intensity) according to prosodic context. This deficit was particularly pronounced for the intonation feature of anger, question, and statement. No consistent correlations could be found between prosodic production and cognitive or behavioural data. Conclusions—Acoustic analysis of pitch and intensity may show impairments of prosodic production after severe closed head injury, which may be useful in rehabilitation planning. This impairment does not seem to reflect the eventual cognitive and behavioural deficits of the patients, but rather a specific disorder of modulation of speech output. (J Neurol Neurosurg Psychiatry 1998;64:482‐485)
19 citations
TL;DR: The case of a 36-year-old female civil litigant who displayed delayed onset, severe, relatively focal speech and language symptoms, including difficulties with articulation, dysfluent speech, expressive language impairments with minor receptive difficulties, and lack of prosody, subsequent to a minor head trauma is presented.
Abstract: Identification of non-credible memory and other cognitive symptoms has received widespread attention within the past two decades. However, minimal information is available regarding patterns of non-credible language symptoms. We present the case of a 36-year-old female civil litigant who displayed delayed onset, severe, relatively focal speech and language symptoms, including difficulties with articulation, dysfluent speech, expressive language impairments with minor receptive difficulties, and lack of prosody, subsequent to a minor head trauma. On neuropsychological evaluation 3 years post injury, the patient presented with the same speech/language characteristics, but additionally exhibited a vague "foreign accent." Cognitive scores generally were normal with the exception of poor performance on many language tasks and processing/motor speed. The patient showed passing performance on most measures of response bias, but she failed effort indicators requiring rapid letter discrimination (b Test), rapid verbal repetition (timed forward digit span), and sensory function (finger agnosia errors) while passing effort indicators falling within the domains of memory, math/number skills, visuo-constructional ability, and attention. Thus, the type of failed effort indicators predicted the categories of standard cognitive tests on which she underperformed. Personality testing revealed patterns generally consistent with hysterical personality orientation. Given her long-standing history of multiple unexplained medical symptoms, the patient was diagnosed with a somatization disorder, as well as a current conversion disorder involving language symptoms. However, given her compensation-seeking status, the possibility of additional conscious feigning of symptoms could not be ruled out. The need for validation of additional measures to detect feigned language impairment is recommended.
19 citations
TL;DR: This article investigated the intelligibility of dysarthric speech and two types of synthesized speech over the telephone and in quiet conditions, and listeners' preferences for these speech types were investigated.
Abstract: For many individuals with severe speech intelligibility challenges, deciding whether to use one's own oral dysarthric speech or synthesized speech when communicating on the telephone is a difficult process. In the present study, we investigated the intelligibility of dysarthric speech and two types of synthesized speech over the telephone and in quiet conditions, and listeners' preferences for these speech types. Participants heard short sentences in one of three types of speech: dysarthric female speech, DECTalk® Beautiful Betty, and MacinTalk™ Victoria, high quality. They were asked to transcribe sentences for a measure of intelligibility, and to answer questions to indicate their preferences for speech type and their preferences for synthesizer. The overall intelligibility of DECTalk® and MacinTalk™ were significantly higher than the intelligibility of the dysarthric speech. Additionally, the intelligibility of the speaker with dysarthria decreased significantly when listeners were presented with the m...
19 citations
Journal Article•
TL;DR: This paper examined how speakers with ataxic dysarthria produce sentence stress and how these findings relate to other measures of speech performance, including F-0, intensity, and duration measures for sentence stress targets and MPTs, as well as acoustic rhythm measures for the sentence and passage reading tasks.
Abstract: This study examined how speakers with ataxic dysarthria produce sentence stress and how these findings relate to other measures of speech performance. Ten speakers with ataxia and ten control speakers performed maximum performance, sentence stress, and passage reading tasks. Perceptual analyses established intelligibility levels and accuracy of stress production. Acoustic analyses included F-0, intensity, and duration measures for sentence stress targets and MPTs, as well as acoustic rhythm measures for the sentence and passage reading tasks. Results showed that 60% of speakers experienced problems in signalling sentence stress irrespective of the severity of their dysarthria. Intensity and duration were most impaired, with F-0 and pause insertion being used as compensatory strategies. The results highlighted the need for a detailed examination of speaker abilities in a variety of tasks in order to inform selection of the most effective treatment strategies.
19 citations
TL;DR: Preliminary evidence emerges to suggest that speech, but not necessarily intelligibility, is likely to be impaired when lingual weakness is severe, but reinforce tenuous links between orofacial strength and speech production disorders.
Abstract: Purpose This study compared orofacial strength between adults with dysarthria and neurologically normal (NN) matched controls. In addition, orofacial muscle weakness was examined for potential rela...
19 citations