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Published (Version of Record)CC BY V4.0, Open Access
Journal article
Auditory development between 7 and 11 Years: An event-related potential (ERP) study
PLoS ONE, Vol.6(5), e18993
2011
Abstract
Background: There is considerable uncertainty about the time-course of central auditory maturation. On some indices, children appear to have adult-like competence by school age, whereas for other measures development follows a protracted course. Methodology: We studied auditory development using auditory event-related potentials (ERPs) elicited by tones in 105 children on two occasions two years apart. Just over half of the children were 7 years initially and 9 years at follow-up, whereas the remainder were 9 years initially and 11 years at follow-up. We used conventional analysis of peaks in the auditory ERP, independent component analysis, and time-frequency analysis. Principal Findings: We demonstrated maturational changes in the auditory ERP between 7 and 11 years, both using conventional peak measurements, and time-frequency analysis. The developmental trajectory was different for temporal vs. fronto-central electrode sites. Temporal electrode sites showed strong lateralisation of responses and no increase of low-frequency phase-resetting with age, whereas responses recorded from fronto-central electrode sites were not lateralised and showed progressive change with age. Fronto-central vs. temporal electrode sites also mapped onto independent components with differently oriented dipole sources in auditory cortex. A global measure of waveform shape proved to be the most effective method for distinguishing age bands. Conclusions/Significance: The results supported the idea that different cortical regions mature at different rates. The ICC measure is proposed as the best measure of 'auditory ERP age'.
Details
- Title
- Auditory development between 7 and 11 Years: An event-related potential (ERP) study
- Authors/Creators
- D.V.M. Bishop (Author/Creator)M. Anderson (Author/Creator)C. Reid (Author/Creator)A.M. Fox (Author/Creator)
- Publication Details
- PLoS ONE, Vol.6(5), e18993
- Publisher
- Public Library of Science
- Identifiers
- 991005544989507891
- Copyright
- © 2011 Bishop et al.
- Murdoch Affiliation
- School of Psychology
- Language
- English
- Resource Type
- Journal article
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