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Reprogramming the Cerebral CortexPlasticity following central and peripheral lesions$
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Stephen Lomber and Jos Eggermont

Print publication date: 2006

Print ISBN-13: 9780198528999

Published to Oxford Scholarship Online: September 2009

DOI: 10.1093/acprof:oso/9780198528999.001.0001

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Critical periods for human cortical development

Critical periods for human cortical development

An ERP study in children with cochlear implant

(p.213) Chapter 11 Critical periods for human cortical development
Reprogramming the Cerebral Cortex

Curtis W. Ponton

Oxford University Press

This chapter describes the effects that a period of auditory deprivation due to profound deafness, followed by restoration of sensation via a cochlear implant, has on the development of the human auditory central nervous system. Neurophysiological evidence of human central auditory system plasticity in profoundly deaf adults and children who use cochlear prostheses will be based on scalp-recorded electrophysiological activity evoked by activation of the cochlear implant. This activity measured from cochlear implant users is contrasted with that of normal-hearing adults and children to illustrate the similarities and differences in auditory cortical activity. These results are set in the context of what is known about the generators of the AEPs (auditory evoked potentials) as well as recent studies describing the maturational sequence of the neuroanatomical structures, particularly in cortex.

Keywords:   auditory deprivation, deafness, cochlear implants, human auditory system development, plasticity

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