Speech Characteristics and Intelligibility in Adults with Mild and Moderate Intellectual Disabilities

Marjolein C Coppens-Hofman; Hayo Terband; Ad F. M Snik; Ben A. M Maassen

doi:10.1159/000450548

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Speech Characteristics and Intelligibility in Adults with Mild and Moderate Intellectual Disabilities

Journal article

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Speech Characteristics and Intelligibility in Adults with Mild and Moderate Intellectual Disabilities

Marjolein C Coppens-Hofman, Hayo Terband, Ad F. M Snik and Ben A. M Maassen

Folia phoniatrica et logopaedica, Vol.68(4), pp.175-182

01/01/2016

DOI: 10.1159/000450548

PMCID: PMC5516402

PMID: 28118637

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Abstract

Purpose: Adults with intellectual disabilities (ID) often show reduced speech intelligibility, which affects their social interaction skills. This study aims to establish the main predictors of this reduced intelligibility in order to ultimately optimise management. Method: Spontaneous speech and picture naming tasks were recorded in 36 adults with mild or moderate ID. Twenty-five naive listeners rated the intelligibility of the spontaneous speech samples. Performance on the picture-naming task was analysed by means of a phonological error analysis based on expert transcriptions. Results: The transcription analyses showed that the phonemic and syllabic inventories of the speakers were complete. However, multiple errors at the phonemic and syllabic level were found. The frequencies of specific types of errors were related to intelligibility and quality ratings. Conclusions: The development of the phonemic and syllabic repertoire appears to be completed in adults with mild-to-moderate ID. The charted speech difficulties can be interpreted to indicate speech motor control and planning difficulties. These findings may aid the development of diagnostic tests and speech therapies aimed at improving speech intelligibility in this specific group. (C) 2017 S. Karger AG, Basel

Audiology & Speech-Language Pathology

Life Sciences & Biomedicine

Otorhinolaryngology

Rehabilitation

Science & Technology

Details

Title: Subtitle: Speech Characteristics and Intelligibility in Adults with Mild and Moderate Intellectual Disabilities
Creators: Marjolein C Coppens-Hofman - Radboud University Medical Center
Hayo Terband - Radboud University Nijmegen
Ad F. M Snik - Radboud University Nijmegen
Ben A. M Maassen - CognIT (Norway)
Resource Type: Journal article
Publication Details: Folia phoniatrica et logopaedica, Vol.68(4), pp.175-182
DOI: 10.1159/000450548
PMID: 28118637
PMCID: PMC5516402
NLM abbreviation: Folia Phoniatr Logop
ISSN: 1021-7762
eISSN: 1421-9972
Publisher: KARGER
Number of pages: 8
Language: English
Date published: 01/01/2016
Academic Unit: Communication Sciences and Disorders
Record Identifier: 9984258854102771

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