Fereczkowski Michal, Dau Torsten, MacDonald Ewen N
Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark.
Faculty of Health Sciences, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
Trends Hear. 2021 Jan-Dec;25:23312165211016155. doi: 10.1177/23312165211016155.
While an audiogram is a useful method of characterizing hearing loss, it has been suggested that including a complementary, suprathreshold measure, for example, a measure of the status of the cochlear active mechanism, could lead to improved diagnostics and improved hearing-aid fitting in individual listeners. While several behavioral and physiological methods have been proposed to measure the cochlear-nonlinearity characteristics, evidence of a good correspondence between them is lacking, at least in the case of hearing-impaired listeners. If this lack of correspondence is due to, for example, limited reliability of one of such measures, it might be a reason for limited evidence of the benefit of measuring peripheral compression. The aim of this study was to investigate the relation between measures of the peripheral-nonlinearity status estimated using two psychoacoustical methods (based on the notched-noise and temporal-masking curve methods) and otoacoustic emissions, on a large sample of hearing-impaired listeners. While the relation between the estimates from the notched-noise and the otoacoustic emissions experiments was found to be stronger than predicted by the audiogram alone, the relations between the two measures and the temporal-masking based measure did not show the same pattern, that is, the variance shared by any of the two measures with the temporal-masking curve-based measure was also shared with the audiogram.
虽然听力图是描述听力损失的一种有用方法，但有人提出，纳入一种补充性的超阈值测量方法，例如测量耳蜗主动机制的状态，可能会改善个体听力受损者的诊断和助听器适配情况。虽然已经提出了几种行为学和生理学方法来测量耳蜗非线性特征，但至少在听力受损者的情况下，缺乏它们之间良好对应关系的证据。如果这种缺乏对应关系是由于例如其中一种测量方法的可靠性有限，那么这可能是测量外周压缩益处的证据有限的一个原因。本研究的目的是在大量听力受损者样本中，研究使用两种心理声学方法（基于陷波噪声和时间掩蔽曲线方法）估计的外周非线性状态测量值与耳声发射之间的关系。虽然发现陷波噪声估计值与耳声发射实验之间的关系比仅由听力图预测的更强，但这两种测量方法与基于时间掩蔽的测量方法之间的关系并未呈现相同模式，也就是说，这两种测量方法中的任何一种与基于时间掩蔽曲线的测量方法所共有的方差也与听力图共有。
