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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Acoustic analysis of speech intonation pattern of individuals with Autism Spectrum Disorders

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Author(s):
Ana Gabriela Olivati [1] ; Francisco Baptista Assumpção Junior [2] ; Andréa Regina Nunes Misquiatti [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista Julio de Mesquita Filho UN, Marilia, SP - Brazil
[2] Universidade de São Paulo - Brasil
[3] Universidade Estadual Paulista “Júlio de Mesquita Filho” - Brasil
Total Affiliations: 3
Document type: Journal article
Source: CoDAS; v. 29, n. 2 2017-04-10.
Abstract

ABSTRACT Purpose This study aimed to analyze prosodic elements of speech segments of students with Autism Spectrum Disorders (ASD) and compare with the control group, using an acoustic analysis. Methods Speech recordings were performed with a sample of individuals with ASD (n = 19) and with typical development (n = 19) of the male gender, age range: 8-33 years. The prosody questionnaire ALIB (Brazilian Linguistic Atlas) was used as script, which contains interrogative, affirmative and imperative sentences. Data were analyzed using the PRAAT software and forwarded to statistical analysis in order to verify possible significant differences between the two groups studied in each prosodic parameter evaluated (fundamental frequency, intensity and duration) and its respective variables. Results There were significant differences for the variables tessitura, melodic amplitude of tonic vowel, melodic amplitude of pretonic vowel, maximum intensity, minimum intensity, tonic vowel duration, pretonic vowel duration and phrase duration. Conclusion Individuals with ASD present significant differences in prosody compared to those with typical development. It is noteworthy, however, the necessity of additional studies on the characterization of prosodic aspects of speech of individuals with ASD with a larger sample and a more restricted age group. (AU)

FAPESP's process: 13/00381-4 - Acoustic analysis of intonational variation of individuals with Asperger Syndrome
Grantee:Ana Gabriela Olivati
Support Opportunities: Scholarships in Brazil - Scientific Initiation