Contextual probability evaluation in autistic, receptive developmental language disorder, and control children: Event-related brain potential evidence
| Autor: | Lisa Harms, Eric Courchesne, Mark H. Allen, Alan J. Lincoln |
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| Rok vydání: | 1993 |
| Předmět: |
Male
Auditory perception Adolescent media_common.quotation_subject Electroencephalography behavioral disciplines and activities Developmental psychology Event-related potential P3b Evoked Potentials Auditory Brain Stem Reaction Time Developmental and Educational Psychology medicine Humans Language disorder Autistic Disorder Child media_common Psychiatric Status Rating Scales Language Disorders Language Tests medicine.diagnostic_test medicine.disease Developmental disorder Acoustic Stimulation Speech Perception Autism Female Psychology Vigilance (psychology) |
| Zdroj: | Journal of Autism and Developmental Disorders. 23:37-58 |
| ISSN: | 1573-3432 0162-3257 |
| DOI: | 10.1007/bf01066417 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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