Pilot Perceptual and Physiological Investigation of Hypernasality in Down’s Syndrome Adults

Rolfe, Christy R.; Montague, James C.; Tirman, Robert M.; Vandergrift, James

doi:10.1159/000264164

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In their study of pain cry in neonates and infants, Lind et al (1970; Table 1) remarked that hypernasality was a common feature in DS. Rolfe et al (1979) noted that nasality was normal in most of their participants but that inconsistent hypernasality appeared in six children with DS. Hypernasality was not a prominent feature of speech reported in a parental report survey (Kumin, 2006), but lay individuals are not particularly discriminating when judgments of nasality are concerned.…”

Section: Speech Sound Disorders (Table 2)mentioning

confidence: 99%

Speech Impairment in Down Syndrome: A Review

Kent

Vorperian

2013

J Speech Lang Hear Res

192

145

View full text Add to dashboard Cite

Purpose This review summarizes research on disorders of speech production in Down Syndrome (DS) for the purposes of informing clinical services and guiding future research. Method Review of the literature was based on searches using Medline, Google Scholar, Psychinfo, and HighWire Press, as well as consideration of reference lists in retrieved documents (including online sources). Search terms emphasized functions related to voice, articulation, phonology, prosody, fluency and intelligibility. Conclusions The following conclusions pertain to four major areas of review: (a) Voice. Although a number of studies have been reported on vocal abnormalities in DS, major questions remain about the nature and frequency of the phonatory disorder. Results of perceptual and acoustic studies have been mixed, making it difficult to draw firm conclusions or even to identify sensitive measures for future study. (b) Speech sounds. Articulatory and phonological studies show that speech patterns in DS are a combination of delayed development and errors not seen in typical development. Delayed (i.e., developmental) and disordered (i.e., nondevelopmental) patterns are evident by the age of about 3 years, although DS-related abnormalities possibly appear earlier, even in infant babbling. (c) Fluency and prosody. Stuttering and/or cluttering occur in DS at rates of 10 to 45%, compared to about 1% in the general population. Research also points to significant disturbances in prosody. (d) Intelligibility. Studies consistently show marked limitations in this area but it is only recently that research goes beyond simple rating scales.

show abstract

Section: Speech Sound Disorders (Table 2)mentioning

confidence: 99%

Speech Impairment in Down Syndrome: A Review

Kent

Vorperian

2013

J Speech Lang Hear Res

192

145

View full text Add to dashboard Cite

show abstract

Selected Complex Malformations that Frequently Require Maxillofacial Reconstruction

Posnick¹

2014

Orthognathic Surgery

View full text Add to dashboard Cite

Auditory-Perceptual Features of Speech in Children and Adults With Down Syndrome: A Speech Profile Analysis

Kent

Eichhorn

Wilson

et al. 2021

J Speech Lang Hear Res

View full text Add to dashboard Cite

Purpose The aim of this study was to determine how the speech disorder profiles in Down syndrome (DS) relate to reduced intelligibility, atypical overall quality, and impairments in the subsystems of speech production (phonation, articulation, resonance, and prosody). Method Auditory-perceptual ratings of intelligibility, overall quality, and features associated with the subsystems of speech production were obtained from recordings of 79 children and adults with DS. Ratings were made for sustained vowels (62 of 79 speakers) and short sentences (79 speakers). The data were analyzed to determine the severity of the affected features in each speaking task and to detect patterns in the group data by means of principal components analysis. Results Reduced intelligibility was noted in 90% of the speakers, and atypical overall speech quality was noted in 100%. Affected speech features were distributed across the speech production subsystems. Principal components analysis revealed four components each for the vowel and sentence tasks, showing that individuals with DS are not homogeneous in the features of their speech disorder. Discussion The speech disorder in DS is complex in its perceptual features and reflects impairments across the subsystems of speech production, but the pattern is not uniform across individuals, indicating that attention must be given to individual variation in designing treatments.

show abstract

Pilot Perceptual and Physiological Investigation of Hypernasality in Down’s Syndrome Adults

Cited by 4 publications

References 3 publications

Speech Impairment in Down Syndrome: A Review

Speech Impairment in Down Syndrome: A Review

Selected Complex Malformations that Frequently Require Maxillofacial Reconstruction

Auditory-Perceptual Features of Speech in Children and Adults With Down Syndrome: A Speech Profile Analysis

Contact Info

Product

Resources

About