학술논문

Effects of Age and Attention on Auditory Global-Local Processing in Children with Autism Spectrum Disorder.
Document Type
Article
Source
Journal of Autism & Developmental Disorders. Apr2016, Vol. 46 Issue 4, p1415-1428. 14p. 4 Charts, 3 Graphs.
Subject
*HYPOTHESIS
*AGE distribution
*ANALYSIS of covariance
*ATTENTION
*AUDITORY perception
*AUTISM
*COMPARATIVE studies
*STATISTICAL correlation
*INTELLECT
*CLASSIFICATION of mental disorders
*PROBABILITY theory
*REGRESSION analysis
*RESEARCH funding
*MEDICAL coding
*DESCRIPTIVE statistics
Language
ISSN
0162-3257
Abstract
In vision, typically-developing (TD) individuals perceive 'global' (whole) before 'local' (detailed) features, whereas individuals with autism spectrum disorder (ASD) exhibit a local bias. However, auditory global-local distinctions are less clear in ASD, particularly in terms of age and attention effects. To these aims, here ASD and TD children judged local and global pitch structure in nine-tone melodies. Both groups showed a similar global precedence effect, but ASD children were less sensitive to global interference than TD children at younger ages. There was no effect of attention task. These findings provide novel evidence of developmental differences in auditory perception and may help to refine sensory phenotypes in ASD. [ABSTRACT FROM AUTHOR]