Earlier identification of children with autism spectrum disorder: An automatic vocalisation-based approach
|dc.identifier.citation||Pokorny, F. and Schuller, B. and Marschik, P. and Brueckner, R. and Nyström, P. and Cummins, N. and Bolte, S. et al. 2017. Earlier identification of children with autism spectrum disorder: An automatic vocalisation-based approach, pp. 309-313.|
Copyright © 2017 ISCA. Autism spectrum disorder (ASD) is a neurodevelopmental disorder usually diagnosed in or beyond toddlerhood. ASD is defined by repetitive and restricted behaviours, and deficits in social communication. The early speech-language development of individuals with ASD has been characterised as delayed. However, little is known about ASD-related characteristics of pre-linguistic vocalisations at the feature level. In this study, we examined pre-linguistic vocalisations of 10-month-old individuals later diagnosed with ASD and a matched control group of typically developing individuals (N = 20). We segmented 684 vocalisations from parent-child interaction recordings. All vocalisations were annotated and signal-analytically decomposed. We analysed ASD-related vocalisation specificities on the basis of a standardised set (eGeMAPS) of 88 acoustic features selected for clinical speech analysis applications. 54 features showed evidence for a differentiation between vocalisations of individuals later diagnosed with ASD and controls. In addition, we evaluated the feasibility of automated, vocalisation-based identification of individuals later diagnosed with ASD.We compared linear kernel support vector machines and a 1-layer bidirectional long short-term memory neural network. Both classification approaches achieved an accuracy of 75% for subject-wise identification in a subject-independent 3-fold cross-validation scheme. Our promising results may be an important contribution en-route to facilitate earlier identification of ASD.
|dc.title||Earlier identification of children with autism spectrum disorder: An automatic vocalisation-based approach|
|dcterms.source.title||Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH|
|dcterms.source.series||Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH|
|curtin.department||School of Occ Therapy, Social Work and Speech Path|
|curtin.accessStatus||Fulltext not available|
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