Jump to ContentJump to Main Navigation
Speech Motor ControlNew developments in basic and applied research$
Users without a subscription are not able to see the full content.

Ben Maassen and Pascal van Lieshout

Print publication date: 2010

Print ISBN-13: 9780199235797

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780199235797.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2017. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in OSO for personal use (for details see http://www.oxfordscholarship.com/page/privacy-policy).date: 15 December 2017

Developmental models of childhood apraxia of speech

Developmental models of childhood apraxia of speech

Chapter:
(p.243) Chapter 14 Developmental models of childhood apraxia of speech
Source:
Speech Motor Control
Author(s):

Ben Maassen

Lian Nijland

Hayo Terband

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199235797.003.0014

Childhood apraxia of speech (CAS) is a highly controversial clinical entity with respect to both clinical signs and underlying neuro-motor deficit. This chapter analyzes the origin of these controversies and offers an alternative clinical approach and direction for research based on a review of the literature and studies conducted in our own laboratory. The review shows evidence for a deficit at each of the psycholinguistic and neuro-motor stages from lexical retrieval to motor execution as the primary, proximal origin of CAS. This lack of convergence together with the reported associations rather than dissociations between psycholinguistic and neuro-motor functions during development forms a serious challenge for the modular view on the cognitive architecture of the infant speech production system. An alternative view on clinical classification, the issue of co-morbidity, and research in speech pathology are discussed based on longitudinal analyses of developmental trajectories. By way of example, a computational modelling study is presented in which characteristics of CAS are simulated by manipulating parameters of the DIVA (Directions Into Velocities of Articulators) model.

Keywords:   childhood apraxia of speech, speech production, infant speech, DIVA model

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .