Cortical auditory evoked potentials in the assessment of auditory neuropathy

Two case studies

Wendy Pearce*, Maryanne Golding, Harvey Dillon

*Corresponding author for this work

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Infants with auditory neuropathy and possible hearing impairment are being dentified at very young ages through the implementation of hearing screening programs. The diagnosis is commonly based on evidence of normal cochlear function but abnormal brainstem function. This lack of normal brainstem function is highly problematic when prescribing amplification in young infants because prescriptive formulae require the input of hearing thresholds that are normally estimated from auditory brainstem responses to tonal stimuli. Without this information, there is great uncertainty surrounding the final fitting. Cortical auditory evoked potentials may, however, still be evident and reliably recorded to speech stimuli presented at conversational levels. The case studies of two infants are presented that demonstrate how these higher order electrophysiological responses may be utilized in the audiological management of some infants with auditory neuropathy.

Original languageEnglish
Pages (from-to)380-390
Number of pages11
JournalJournal of the American Academy of Audiology
Volume18
Issue number5
DOIs
Publication statusPublished - May 2007
Externally publishedYes

Keywords

  • Auditory neuropathy
  • Cortical auditory evoked potentials
  • Hearing aids

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