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- DOI: 10.1097/AUD.0b013e318220377e
- PMID: 21566525
- UKPMCID: 21566525
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Obligatory cortical auditory evoked potential waveform detection and differentiation using a commercially available clinical system: HEARLab™.
Munro, Kevin J; Purdy, Suzanne C; Ahmed, Sadia; Begum, Rushanara; Dillon, Harvey
Ear and hearing. 2011;32(6):782-6.
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Full-text held externally
- DOI: 10.1097/AUD.0b013e318220377e
- PMID: 21566525
- UKPMCID: 21566525
Abstract
OBJECTIVE: The aim was to investigate detection and differentiation of obligatory cortical auditory evoked potentials (CAEPs) in normal-hearing listeners with and without a simulated conductive hearing impairment using the HEARLab™. DESIGN: Sound field CAEPs were obtained from 24 normal-hearing adults, with and without earplugs, using three natural speech sounds (/m/, /g/, and /t/) presented at 55, 65, and 75 dB SPL. RESULTS: Response detection was good except for the lowest presentation level; however, differentiation of waveforms was generally poor for individual listeners. CONCLUSIONS: Waveform differentiation was relatively poor, especially at low presentation levels, using the HEARLab's stimulus and analysis protocol.