Validity and accuracy of electric response audiometry using the auditory steady-state response: Evaluation in an empirical design
The validity and accuracy of the application of the auditory steady-state response (ASSR) to electric response audiometry (ERA) was tested further in a study permitting subjects to be their own controls for hearing loss. Simulated sensorineural hearing loss (SSHL) of complex configuration and varying degrees was effected using filtered masking noise. Thresholds estimated via ASSR-ERA were compared to those measured via conventional pure-tone audiometry. Further, the slow vertex potential N1–P2 was recorded to permit a comparison with an evoked-response test of common content validity and known accuracy. Results in a homogeneous subject sample demonstrated strong intertest correlation and agreement within 10 dB at 1000 to 4000 Hz (on average), but not at 500 Hz. The configurations determined by ASSR-ERA followed behavioral audiometric patterns well, except for the mildest degree of SSHL tested. Consequently, limitations of ERA remain, although ASSR-ERA appears to be quite valid overall and promises (justifiably) broad clinical applicability.
Communication Sciences and Disorders
pure-tone audiometry, evoked response audiometry, slow vertex potential/slow cortical potential, auditory steady-state response, simulated sensorineural hearing loss
Kaf, Wafaa A., John D. Durrant, Diane L. Sabo, J. Robert Boston, Lisa B. Taubman, and Kristie Kovacyk. "Validity and accuracy of electric response audiometry using the auditory steady-state response: Evaluation in an empirical design." International Journal of Audiology 45, no. 4 (2006): 211-223.
International Journal of Audiology