Central auditory development: evidence from CAEP measurements in children fit with cochlear implants.

ABSTRACT:

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In normal-hearing children the latency of the P1 component of the cortical evoked response to sound varies as a function of age and, thus, can be used as a biomarker for maturation of central auditory pathways. We assessed P1 latency in 245 congenitally deaf children fit with cochlear implants following various periods of auditory deprivation. If children experience less than 3.5 years of auditory deprivation before implantation, P1 latencies fall into the range of normal following 3-6 months of electrical stimulation. Children who experience greater than 7 years of deprivation, however, generally do not develop normal P1 latencies even after years of stimulation. Moreover, the waveforms for these patients can be markedly abnormal. Cortical reorganization stimulated by d

SUBMITTER: Dorman MF 

PROVIDER: S-EPMC2755241 | biostudies-literature | 2007 Jul-Aug

REPOSITORIES: biostudies-literature