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The auditory event-related potential (ERP) is obtained by averaging electrical impulses recorded from the scalp in response to repeated stimuli. Previous work has shown large differences between children, adolescents and adults in the late auditory ERP, raising the possibility that analysis of waveform shape might be useful as an index of brain maturity. We reanalysed auditory ERPs from samples previously described by Albrecht, von Suchodoletz and Uwer (2000) and Uwer, Albrecht and von Suchodoletz (2002), using the intraclass correlation (ICC) as a global measure of similarity of an individual's waveform to a grand average comparison waveform for each age band. Three developmental periods were clearly distinguished: 5 to 12 years, 13 to 16 years, and adulthood. However, within each of these periods, there was no evidence of any developmental progression with age.

Original publication

DOI

10.1111/j.1467-7687.2007.00619.x

Type

Journal article

Journal

Dev Sci

Publication Date

09/2007

Volume

10

Pages

565 - 575

Keywords

Adolescent, Adult, Age Factors, Child, Child, Preschool, Developmental Biology, Electrodes, Electrophysiology, Evoked Potentials, Female, Humans, Male, Models, Neurological, Sex Factors, Time Factors