Whiteside, S.P. orcid.org/0000-0002-6672-9369, Dyson, L., Cowell, P.E. et al. (1 more author) (2015) The Relationship Between Apraxia of Speech and Oral Apraxia: Association or Dissociation? Archives of Clinical Neuropsychology , 30 (7). pp. 670-682. ISSN 0887-6177
Abstract
Acquired apraxia of speech (AOS) is a motor speech disorder that affects the implementation of articulatory gestures and the fluency and intelligibility of speech. Oral apraxia (OA) is an impairment of nonspeech volitional movement. Although many speakers with AOS also display difficulties with volitional nonspeech oral movements, the relationship between the 2 conditions is unclear. This study explored the relationship between speech and volitional nonspeech oral movement impairment in a sample of 50 participants with AOS. We examined levels of association and dissociation between speech and OA using a battery of nonspeech oromotor, speech, and auditory/aphasia tasks. There was evidence of a moderate positive association between the 2 impairments across participants. However, individual profiles revealed patterns of dissociation between the 2 in a few cases, with evidence of double dissociation of speech and oral apraxic impairment. We discuss the implications of these relationships for models of oral motor and speech control.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author 2015. Published by Oxford University Press. All rights reserved. This is an author produced version of a paper subsequently published in Archives of Clinical Neuropsychology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Speech apraxia; Oral apraxia; Stroke; Dissociation; Association |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > Department of Human Communication Sciences (Sheffield) The University of Sheffield > Sheffield Teaching Hospitals |
Funding Information: | Funder Grant number BUPA FOUNDATION 747/G24 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 18 Apr 2016 15:31 |
Last Modified: | 17 Nov 2016 16:16 |
Published Version: | http://dx.doi.org/10.1093/arclin/acv051 |
Status: | Published |
Publisher: | Oxford University Press |
Refereed: | Yes |
Identification Number: | 10.1093/arclin/acv051 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:98012 |