P1 latency as a biomarker for central auditory development in children with hearing impairment

Anu Sharma, Kathryn Martin, Peter Roland, Paul Bauer, Melissa H. Sweeney, Phillip Gilley, Michael Dorman

Research output: Contribution to journalArticle

103 Scopus citations


We used the latency of the P1 cortical auditory-evoked potential (CAEP) as a biomarker for the development of central auditory pathways in three children who received intervention through hearing aids and/or cochlear implants. Our goal was to examine the clinical feasibility of using the latency of the P1 CAEP as an objective tool to evaluate whether acoustic amplification for hearing-impaired children has provided sufficient stimulation for normal development of central auditory pathways. If clinicians have such a marker, then they can more confidently make a decision about whether to provide a child with a cochlear implant following an appropriate hearing-aid trial. Using the same marker, clinicians will also be able to monitor the maturation of central auditory pathways once electrical stimulation is initiated.

Original languageEnglish (US)
Pages (from-to)564-573
Number of pages10
JournalJournal of the American Academy of Audiology
Issue number8
Publication statusPublished - 2005



  • Amplification
  • Biomarker
  • Cochlear implant
  • Cortical auditory evoked potential
  • Hearing aid
  • Hearing impairment
  • Objective measure
  • P1
  • Plasticity

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Sharma, A., Martin, K., Roland, P., Bauer, P., Sweeney, M. H., Gilley, P., & Dorman, M. (2005). P1 latency as a biomarker for central auditory development in children with hearing impairment. Journal of the American Academy of Audiology, 16(8), 564-573. https://doi.org/10.3766/jaaa.16.8.5