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Short Report: Effects of Pivotal Response Treatment on Reciprocal Vocal Contingency in a Randomized Controlled Trial of Children with Autism Spectrum Disorder
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In: Autism (2020)
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Abstract:
A pivotal response treatment package (PRT-P) consisting of clinician-delivered and parent-implemented strategies was recently found to be effective in improving language and social communication deficits in children with autism spectrum disorder (ASD; Gengoux et al., 2019). Reciprocal vocal contingency (RVC), an automated measure of vocal reciprocity, may provide stronger and complementary evidence of the effects of PRT-P. RVC is derived through an automated process from day-long audio samples from the child’s natural environment. Therefore, RVC is at lower risk for detection bias than parent report and brief parent-child interaction measures. Although differences were non-significant at baseline and after 12 weeks of intervention for the 48 children with ASD who were randomly assigned to PRT-P or a delayed treatment control group, the PRT-P group had higher ranked RVC scores than the control group after 24 weeks (U = 125, p = .04). These findings are consistent with results from parent report and parent-child interaction measures obtained during the trial. The participants in PRT-P exhibited greater vocal responsiveness to adult vocal responses to their vocalizations than the control group. Findings support the effectiveness of PRT-P on vocal reciprocity of children with ASD, which may be a pivotal skill for language development.
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Article
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7375927/
https://doi.org/10.1177/1362361320903138
http://www.ncbi.nlm.nih.gov/pubmed/32054315
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Developmental Associations between Joint Engagement and Autistic Children’s Vocabulary: A Cross-lagged Panel Analysis
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In: Autism (2020)
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