ERIC Number: EJ850461
Record Type: Journal
Publication Date: 2004-Sep
Abstractor: As Provided
Reference Count: 17
Immature Cortical Responses to Auditory Stimuli in Specific Language Impairment: Evidence from ERPS to Rapid Tone Sequences
Bishop, D. V. M.; McArthur, G. M.
Developmental Science, v7 n4 pF11-F18 Sep 2004
Event-related potentials (ERPs) to tone pairs and single tones were measured for 16 participants with specific language impairment (SLI) and 16 age-matched controls aged from 10 to 19 years. The tone pairs were separated by an inter-stimulus interval (ISI) of 20, 50 or 150 ms. The intraclass correlation (ICC) was computed for each participant between the ERP to a single tone and the ERP to the tone pair. A high ICC indicates that the brain response to a tone pair is similar to that for a single tone. ICCs were significantly higher at short than at long ISIs. At 50-ms ISI, ICCs were higher for younger than older participants. Age and ISI interacted with SLI status: ERPs of older participants with SLI differed from age-matched controls, and resembled ERPs of younger controls, consistent with a theory of immature auditory processing in SLI.
Descriptors: Auditory Stimuli, Language Impairments, Brain, Auditory Perception, Brain Hemisphere Functions, Diagnostic Tests, Comparative Analysis, Adolescents, Preadolescents, Correlation, Age Differences, Child Development
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Publication Type: Journal Articles; Reports - Research
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