CONTEXTUAL PROBABILITY EVALUATION IN AUTISTIC, RECEPTIVE DEVELOPMENTAL LANGUAGE DISORDER, AND CONTROL CHILDREN - EVENT-RELATED BRAIN POTENTIAL EVIDENCE

被引:63
作者
LINCOLN, AJ
COURCHESNE, E
HARMS, L
ALLEN, M
机构
[1] CALIF SCH PROFESS PSYCHIAT,SAN DIEGO,CA
[2] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093
关键词
D O I
10.1007/BF01066417
中图分类号
B844 [发展心理学(人类心理学)];
学科分类号
040202 ;
摘要
Compared 8- to 14-year-old children with either autism or receptive developmental language disorder (RDLD) to age- and IQ-matched normal controls in their ability to detect both frequent (p = .70) and infrequent (p = .30) randomly presented auditory stimuli under task and no-task conditions. Event-related brain potentials (ERPs), behavioral reaction times, and target detection accuracy rates were measured. Although the three groups of children performed in a similar manner on behavioral measures, only the children with autism demonstrated an abnormally small amplitude of the P3b, a component of the ERP. This result is interpreted in terms of (a) the consistency of this finding with other ERP studies involving older individuals with autism; and (b) its significance with respect to the difficulty children with autism have in modifying their expectancies to contextually relevant sequences of auditory information.
引用
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页码:37 / 58
页数:22
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