Assessment of Childhood Apraxia of Speech: A Review/Tutorial of Objective Measurement Techniques

Hayo Terband*, Aravind Namasivayam, Edwin Maas, Frits van Brenk, Marja-Liisa Mailend, Sanne Diepeveen, Pascal van Lieshout, Ben Maassen

*Bijbehorende auteur voor dit werk

    Onderzoeksoutput: Review articlepeer review

    17 Citaten (Scopus)
    1169 Downloads (Pure)


    Background: With respect to the clinical criteria for diagnosing childhood apraxia of speech (commonly defined as a disorder of speech motor planning and/or programming), research has made important progress in recent years. Three segmental and suprasegmental speech characteristics-error inconsistency, lengthened and disrupted coarticulation, and inappropriate prosody-have gained wide acceptance in the literature for purposes of participant selection. However, little research has sought to empirically test the diagnostic validity of these features. One major obstacle to such empirical study is the fact that none of these features is stated in operationalized terms.

    Purpose: This tutorial provides a structured overview of perceptual, acoustic, and articulatory measurement procedures that have been used or could be used to operationalize and assess these 3 core characteristics. Methodological details are reviewed for each procedure, along with a short overview of research results reported in the literature.

    Conclusion: The 3 types of measurement procedures should be seen as complementary. Some characteristics are better suited to be described at the perceptual level (especially phonemic errors and prosody), others at the acoustic level (especially phonetic distortions, coarticulation, and prosody), and still others at the kinematic level (especially coarticulation, stability, and gestural coordination). The type of data collected determines, to a large extent, the interpretation that can be given regarding the underlying deficit. Comprehensive studies are needed that include more than 1 diagnostic feature and more than 1 type of measurement procedure.

    Originele taal-2English
    Pagina's (van-tot)2999-3032
    Aantal pagina's34
    TijdschriftJournal of Speech Language and Hearing Research
    Nummer van het tijdschrift8S
    StatusPublished - aug.-2019

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