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Maturation of the long‐latency auditory ERP: step function changes at start and end of adolescence
Author(s) -
Bishop Dorothy V.M.,
Hardiman Mervyn,
Uwer Ruth,
Von Suchodoletz Waldemar
Publication year - 2007
Publication title -
developmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.801
H-Index - 127
eISSN - 1467-7687
pISSN - 1363-755X
DOI - 10.1111/j.1467-7687.2007.00619.x
Subject(s) - psychology , audiology , intraclass correlation , latency (audio) , event related potential , auditory event , developmental psychology , correlation , scalp , electroencephalography , cognition , neuroscience , psychometrics , medicine , geometry , mathematics , electrical engineering , anatomy , engineering
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.