Cebulla Mario, Stürzebecher Ekkehard, Elberling Claus
ENT Clinic, Faculty of Medicine, University of Würzburg, Germany.
J Am Acad Audiol. 2006 Feb;17(2):93-103. doi: 10.3766/jaaa.17.2.3.
Auditory steady-state responses (ASSR) are expected to be useful for the objective, frequency-specific assessment of hearing thresholds in small children. To detect ASSR close to the hearing threshold, a powerful statistical test has to be applied. At present, so-called one-sample tests are used. These tests only evaluate the phase, or the phase and amplitude, of the first harmonic, that is, the fundamental frequency. It is shown that higher harmonics with significant amplitudes are also contained in the ASSR spectrum. For this reason, statistical tests that only consider the first harmonic ignore a significant portion of the available information. The use of a q-sample test, which, in addition to the fundamental frequency, also includes higher harmonics in the detection leads to a better detection performance. The evaluation of test performance uses both detection rate and detection time.
听觉稳态反应（ASSR）有望用于对幼儿听力阈值进行客观、频率特异性评估。为了检测接近听力阈值的ASSR，必须应用强大的统计测试。目前，使用的是所谓的单样本测试。这些测试仅评估一次谐波的相位，或相位和幅度，即基频。结果表明，ASSR频谱中还包含具有显著幅度的更高谐波。因此，仅考虑一次谐波的统计测试忽略了很大一部分可用信息。使用q样本测试，除了基频外，在检测中还包括更高谐波，可带来更好的检测性能。测试性能评估使用检测率和检测时间。
