Neurophysiology of Speech Differences in Childhood Apraxia of Speech

Preston, Jonathan L.; Molfese, Peter J.; Gumkowski, Nina; Sorcinelli, Andrea; Harwood, Vanessa; Irwin, Julia; Landi, Nicole

doi:10.1080/87565641.2014.939181

Cited by 11 publications

(5 citation statements)

References 44 publications

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“…More recently, an event-related potentials study involving children aged 9 -15 years with deficits in motor speech control and planning, compared to control children with typical speech during a picture-naming task. The results showed reduced amplitudes over the right hemisphere prior to the production of multisyllabic relative to monosyllabic words in the children with motor speech control deficits [8]. These studies provided consistent findings indicating different cortical activities related to processing of speech production areas in children with SSD.…”

Section: Introductionsupporting

confidence: 66%

Impact of Motor Speech Intervention on Neural Activity in Children with Speech Sound Disorders: Use of Magnetoencephalography

Yu¹,

Kadis²,

Goshulak³

et al. 2018

JBBS

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We present the novel use of a neuroimaging technique, magnetoencephalography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound disorders (SSD). Nine children (mean age = 4.2 years) with SSD were scanned in the MEG before and after an eight-week course of intensive motor speech therapy. MEG tasks involved an oromotor and a syllable production task. MEG analyses identified significant post-therapy changes in brain regions related to oromotor control and speech production. Behavioral assessments showed significant improvements on measures of motor speech skills and articulation following intervention. This is the first demonstration of the ability of MEG to: 1) capture brain activations resulting from oromotor movements and simple syllable production in young children, and 2) capture brain changes related to speech therapy. As the findings from this study are promising, we discuss directions for the design of future studies to further examine specific neural dysfunctions in speech sound disorders.

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Section: Introductionsupporting

confidence: 66%

Impact of Motor Speech Intervention on Neural Activity in Children with Speech Sound Disorders: Use of Magnetoencephalography

Yu¹,

Kadis²,

Goshulak³

et al. 2018

JBBS

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“…Unlike NWR, however, MSW may be more directly associated with exposure to real words that contain complex phonological sequences. Previous studies have revealed that children with sCAS, as well as those with less severe forms of SSD, have persisting weaknesses in producing multisyllable words (Lewis et al, 2015;Peter, Lancaster, Vose, Middleton, & Stoel-Gammon, 2018;Peter et al, 2016;Preston & Edwards, 2007;Preston et al, 2014). Deficits in phonological encoding, phonological memory, and motor planning and programming associated with MSW can persist into adulthood for some individuals with CAS and affect reading and spelling (Peter et al, 2013(Peter et al, , 2018.…”

Section: Discussionmentioning

confidence: 99%

Reading Outcomes for Individuals With Histories of Suspected Childhood Apraxia of Speech

Miller

Lewis

Benchek

et al. 2019

Am J Speech Lang Pathol

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Purpose The primary aims of this study were to examine the speech-language correlates of decoding difficulties in children with histories of suspected childhood apraxia of speech (sCAS) and to identify predictors of low-proficiency reading levels. Method Participants were school-age children and adolescents, 7–18 years of age, diagnosed with sCAS ( n = 40) or speech sound disorder but no sCAS (SSD-no sCAS; n = 119). The sCAS and SSD-no sCAS reading groups were compared on measures of performance IQ, oral language, phonological awareness, rapid automatic naming, diadochokinetic rates, single word articulation, and multisyllable and nonsense word repetition. Logistic regression analyses were employed to identify predictors of low-proficiency reading in the sCAS and SSD-no sCAS groups. Results Sixty-five percent of the participants with sCAS compared to 24% of those with SSD-no sCAS were classified as low-proficiency readers based on nonsense and single word decoding. Analysis failed to reveal significant differences in reading, oral language, or phonological awareness between low-proficiency readers with sCAS and low-proficiency readers with SSD-no sCAS. Oral language and phonological awareness skills were the best predictors of reading level for all participants, followed by performance on multisyllabic word repetition and diadochokinetic rate. Conclusions The language and phonological awareness deficits of children with sCAS are related to their risks for reading failure. To a lesser degree, motor speech deficits and speech sound production also increase risks for reading difficulties. The findings justify early intervention for this subset of children.

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“…As described presently, we posit that one "moment" of apraxia-a point in talking when pre-execution commands are not sufficient to continue speaking-includes an inappropriate pause due to transcoding deficits in both representational and motor speech processes. Although origins of such deficits in CAS and AAS differ in pathobiology, we take the position that the two forms of apraxia of speech share generally similar speech processes, with more recent emphasis in the developmental form of apraxia of speech also placed on the processing of feedforward information (e.g., Iuzzini-Seigel et al, 2015;Nijland, Maassen, & van der Meulen, 2003;Preston et al, 2014;Terband et al, 2009;Terband & Maassen, 2010).…”

Section: Sdcs Level IVmentioning

confidence: 99%

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: I. Development and Description of the Pause Marker

Shriberg

Strand

Fourakis

et al. 2017

J Speech Lang Hear Res

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Purpose The goal of this article (PM I) is to describe the rationale for and development of the Pause Marker (PM), a single-sign diagnostic marker proposed to discriminate early or persistent childhood apraxia of speech from speech delay. Method The authors describe and prioritize 7 criteria with which to evaluate the research and clinical utility of a diagnostic marker for childhood apraxia of speech, including evaluation of the present proposal. An overview is given of the Speech Disorders Classification System, including extensions completed in the same approximately 3-year period in which the PM was developed. Results The finalized Speech Disorders Classification System includes a nosology and cross-classification procedures for childhood and persistent speech disorders and motor speech disorders (Shriberg, Strand, & Mabie, 2017). A PM is developed that provides procedural and scoring information, and citations to papers and technical reports that include audio exemplars of the PM and reference data used to standardize PM scores are provided. Conclusions The PM described here is an acoustic-aided perceptual sign that quantifies one aspect of speech precision in the linguistic domain of phrasing. This diagnostic marker can be used to discriminate early or persistent childhood apraxia of speech from speech delay.

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Neurophysiology of Speech Differences in Childhood Apraxia of Speech

Cited by 11 publications

References 44 publications

Impact of Motor Speech Intervention on Neural Activity in Children with Speech Sound Disorders: Use of Magnetoencephalography

Impact of Motor Speech Intervention on Neural Activity in Children with Speech Sound Disorders: Use of Magnetoencephalography

Reading Outcomes for Individuals With Histories of Suspected Childhood Apraxia of Speech

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: I. Development and Description of the Pause Marker

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