PMID: 9638831Jun 25, 1998Paper

Normative Wave V latency-intensity functions using the EARTONE 3A insert earphone and the Radioear B-71 bone vibrator

Scandinavian Audiology
R C Beattie

Abstract

Early auditory evoked response (ABR) audiometry is useful for estimating auditory sensitivity in infants and other difficult-to-test populations. Several investigations advocate using bone-conducted stimuli, in addition to air-conducted stimuli, for screening infants with hearing loss or for ascertaining the presence and magnitude of a conductive hearing loss. The present study was designed to gather normative Wave V latency-intensity data with an insert earphone (EARTONE 3A) and a bone vibrator (Radioear B-71). Forty normal-hearing subjects were tested with air-conducted and bone-conducted clicks at intensities of 55, 40, 30, 20, and 10 dB SL. The stimulus waveforms showed a click onset delay of 0.1 ms for the 3A insert earphone. It is important to note that our ABR latencies were not adjusted to account for these differences. The results revealed that both the air-conduction and bone-conduction functions exhibited Wave V latencies of 7.0 ms at 55 dB SL. Although both functions exhibited increased latencies as intensity decreased to 10 dB SL, the air-conducted clicks yielded somewhat longer latencies than the bone-conducted clicks. To allow direct comparison of the air-conduction and bone-conduction latency-intensity function,...Continue Reading

References

Nov 1, 1979·Archives of Otolaryngology·L Mauldin, J Jerger
Feb 1, 1990·Ear and Hearing·T Frank, D C Wright
Jan 1, 1981·Ear and Hearing·D R Stapells, T W Picton
Jan 1, 1981·Audiology : Official Organ of the International Society of Audiology·E Laukli, I W Mair
Jan 1, 1993·Audiology : Official Organ of the International Society of Audiology·E Y YangW B Green
Jan 1, 1993·Audiology : Official Organ of the International Society of Audiology·J J Foxe, D R Stapells

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Citations

Jun 8, 2013·European Annals of Otorhinolaryngology, Head and Neck Diseases·R Dauman
Jul 27, 2005·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Dietmar BastaArne Ernst
Nov 8, 2005·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Stefan Stenfelt, Richard L Goode

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