ERIC Number: EJ1037023
Record Type: Journal
Publication Date: 2014-Aug
Abstractor: As Provided
Reference Count: 58
Atypical Prosody in Asperger Syndrome: Perceptual and Acoustic Measurements
Filipe, Marisa G.; Frota, Sónia; Castro, São Luís; Vicente, Selene G.
Journal of Autism and Developmental Disorders, v44 n8 p1972-1981 Aug 2014
It is known that individuals with Asperger syndrome (AS) may show no problems with regard to what is said (e.g., lexical content) but tend to have difficulties in how utterances are produced, i.e., they may show prosodic impairments. In the present study, we focus on the use of prosodic features to express grammatical meaning. Specifically, we explored the sentence type difference between statements and questions that is conveyed by intonation, using perceptual and acoustic measurements. Children aged 8 and 9 years with AS (n = 12) were matched according to age and nonverbal intelligence with typically developing peers (n = 17). Although children with AS could produce categorically accurate prosodic patterns, their prosodic contours were perceived as odd by adult listeners, and acoustic measurements showed alterations in duration and pitch. Additionally, children with AS had greater variability in fundamental frequency contours compared to typically developing peers.
Descriptors: Asperger Syndrome, Autism, Suprasegmentals, Intonation, Sentences, Grammar, Acoustics, Children, Comparative Analysis, Perception
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A