Reliability and frequency specificity of auditory steady-state response detected by phase spectral analysis.
Automatic threshold detection techniques are described for auditory steady-state response (ASSR) elicited with a sinusoidally amplitude-modulated tone. The reliability and frequency specificity of ASSR are discussed. When applied to awake adults and detected by phase spectral analysis, 40-Hz ASSR threshold patterns closely resemble their corresponding audiograms. However, 40-Hz ASSR is insufficiently reliable for determining hearing thresholds in young children during sleep. On the other hand, 80-Hz ASSR is detected clearly in sleeping children. Moreover, 80-Hz ASSR threshold patterns also closely resemble the corresponding audiograms. Therefore, 80-Hz ASSR appears to be useful for objective audiometry in children.
Aoyagi
M
M
Watanabe
T
T
Ito
T
T
Abe
Y
Y
D001298:Audiology / Q000379:methods; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology*; D006309:Hearing / Q000502:physiology*; D006801:Humans; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity