Earlier identification of children with autism spectrum disorder: An automatic vocalisation-based approach
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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.
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Earlier identification of children with autism spectrum disorder: An automatic vocalisation-based approachPokorny, F.; Schuller, B.; Marschik, P.; Brueckner, R.; Nyström, P.; Cummins, N.; Bolte, Sven; Einspieler, C.; Falck-Ytter, T. (2017)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. ...
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What do home videos tell us about early motor and socio-communicative behaviours in children with autistic features during the second year of life - An exploratory studyZappella, M.; Einspieler, C.; Bartl-Pokorny, K.; Krieber, M.; Coleman, M.; Bolte, Sven; Marschik, P. (2015)© 2015 Elsevier Ireland Ltd. Background: Little is known about the first half year of life of individuals later diagnosed with autism spectrum disorders (ASD). There is even a complete lack of observations on the first ...