Characteristics of the emissive prosody of children with autism spectrum disorder

ABSTRACT Objective: to analyze the prosodic aspects of speech in children with Autism Spectrum Disorder. Methods: 21 children aged 3 to 6 years participated and were divided into three groups: Group 1 - children with Autism Spectrum Disorder; Group 2 - children with language delay; Group 3 - children with typical language development. Three judges performed a subjective evaluation of the emissive prosody (characterization of pitch, loudness, sentence stress, stressed syllable and others) of the children during interaction time (video recording and use of specific protocols). The equality of proportions test was applied for group comparison (α=0.01). Results: the prevalence of a history of delay for speaking the first words was high in Groups 1 and 2. Regarding the prosodic characteristics, all Group 1 children had difficulties in the use of the stressed syllable, and some in the accentuation of the sentence. On the other hand, no Group 3 children showed these changes and few Group 2 children presented excessively stressed syllable. Conclusion: inappropriate stressing of words seems to be one of the features in the differential diagnosis of verbal children with Autism Spectrum Disorder.