Meta-Analysis of Variables That Affect Accuracy of Threshold Estimation via Measurement of the Auditory Steady-State Response (ASSR)
International Journal of Audiology
Tlumak, A. I., Rubinstein, E., et al. (2007).
International Journal of Audiology, 46(11), 692-710.
This meta-analysis investigates the variables that affect the accuracy of threshold estimation in electric response audiometry (ERA) using auditory steady-state response (ASSR) in individuals, 6 years and older, with typical hearing and hearing loss.
Not stated
1980-2006
English-language studies (not further specified)
56
<div>"80-Hz [auditory stead-state response - electric response audiometry] is a reasonably reliable method for estimating hearing sensitivity in the mid-to-upper conventional audiometric frequencies" (p. 707) in children and adults with typical hearing and hearing loss.</div>
When using 80-Hz ASSR for threshold estimation in patients with hearing loss, it is important to consider:<p></p><ul> <li>accuracy declines in the lower frequencies, starting at 500 Hz.</li> <li>accuracy increases as the carrier frequency increases.</li> <li>accuracy increases for amplitude-modulated tones rather than mixed-modulated tones. </li> <li>accuracy is better with 24 sweeps, and declines as length of recording increased.</li> <li>accuracy is better with the use of stimulus condition binaural-multiple frequency over monaural-multiple frequency, and statistically significant at 2K Hz.</li> <li>electrode montage is not significantly related to accuracy of threshold estimation.</li></ul>
