Computational neural modeling of speech motor control in childhood apraxia of speech (CAS).

@article{Terband2009ComputationalNM,
  title={Computational neural modeling of speech motor control in childhood apraxia of speech (CAS).},
  author={Hayo Terband and Ben A.M. Maassen and Frank H. Guenther and Jonathan S. Brumberg},
  journal={Journal of speech, language, and hearing research : JSLHR},
  year={2009},
  volume={52 6},
  pages={
          1595-609
        }
}
PURPOSE Childhood apraxia of speech (CAS) has been associated with a wide variety of diagnostic descriptions and has been shown to involve different symptoms during successive stages of development. In the present study, the authors attempted to associate the symptoms of CAS in a particular developmental stage with particular information-processing deficits by using computational modeling with the Directions Into Velocities of Articulators (DIVA) model. The hypothesis was that the speech… 
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Speech Motor Development in Childhood Apraxia of Speech: Generating Testable Hypotheses by Neurocomputational Modeling
TLDR
A modeling approach in which a computational neural model of speech acquisition and production is utilized in order to find the neuromotor deficits that underlie the diversity of phonological and speech-motor symptoms of CAS.
Modelling speech motor programming and apraxia of speech in the DIVA/GODIVA neurocomputational framework
TLDR
The DIVA and GODIVA models provide an integrated framework for the generation and testing of both behavioural and neuroimaging hypotheses about the underlying neural mechanisms responsible for motor programming in typical speakers and in speakers with AOS.
Testing hypotheses about the underlying deficit of apraxia of speech through computational neural modelling with the DIVA model
TLDR
Simulation results indicate that the output of the model with the simulated feedforward deficit resembled the group findings for the human speakers with AOS best, corroborating the notion that AOS can be conceptualised as a deficit in feedforward control.
Cognitive Functions in Childhood Apraxia of Speech.
TLDR
The results suggest that CAS involves a symptom complex that not only comprises errors of sequencing speech movements but implicates comorbidity in nonverbal sequential functioning in most children with CAS.
Assessment of Childhood Apraxia of Speech: A Review/Tutorial of Objective Measurement Techniques.
TLDR
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 of childhood apraxia of speech.
Mismatch negativity responses in children with a diagnosis of childhood apraxia of speech (CAS).
TLDR
The authors propose that these preliminary findings are consistent with a view of CAS as a disorder that not only affects motor planning but also has a phonological component.
Model-Driven Treatment of Childhood Apraxia of Speech: Positive Effects of the Speech Motor Learning Approach.
TLDR
Preliminary evidence suggests potentially positive treatment effects for childhood apraxia of speech, however, rising baseline scores limit causal inference.
Differential Diagnosis of Apraxia of Speech in Children and Adults: A Scoping Review.
TLDR
There is a need for studies testing the diagnostic accuracy of multiple candidate markers, better control over language impairment comorbidity, more inclusion of speech-disordered control groups, and an increased focus on translational work moving toward clinical implementation of promising measures.
Reliance on auditory feedback in children with childhood apraxia of speech.
Behavioral, computational, and neuroimaging studies of acquired apraxia of speech
TLDR
This work provides an overview of its own studies into the nature of AOS, including behavioral and neuroimaging methods, to explore components of the speech motor network that are associated with normal and disordered speech motor programming in AOS.
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