a Department of Otorhinolaryngology, Head and Neck Surgery , Ålesund Hospital , Ålesund , Norway.
b Department of Neuromedicine and Movement Science , Norwegian University of Science and Technology , Trondheim , Norway.
Int J Audiol. 2019 May;58(5):301-310. doi: 10.1080/14992027.2019.1570358. Epub 2019 Mar 8.
The suppression of evoked otoacoustic emissions (EOAE) may serve as a clinical tool to evaluate the medial olivocochlear (MOC) reflex, which is thought to aid speech discrimination (particularly in noise) by selectively inhibiting cochlear amplification. The present study aimed to determine if contralateral transient evoked otoacoustic emission (TEOAE) suppression was present in a clinical sample of children with listening difficulties with and without auditory processing disorder (APD).
A three-group, repeated measure design was used.
Forty three children aged 8-14 years underwent an auditory processing assessment and were divided into three groups: children with reported listening difficulties with APD, children with reported listening difficulties without APD, and children with normal hearing. APD was defined as per British Society of Audiology.
TEOAE suppression was present in all three participant groups. No significant group, age or ear effects were observed for TEOAE suppression in dB or as a normalised index.
Contralateral TEOAE suppression method could not be used as a clinical tool to identify APD in this study's participating children and did not support the hypothesised link between reduced MOC function and general listening difficulties in background noise in children with or without APD.
抑制诱发耳声发射（EOAE）可作为一种临床工具，用于评估内侧橄榄耳蜗（MOC）反射，该反射被认为通过选择性抑制耳蜗放大来辅助言语辨别（特别是在噪声中）。本研究旨在确定在伴有和不伴有听觉处理障碍（APD）的听力困难的临床样本中，是否存在对侧瞬态诱发耳声发射（TEOAE）抑制。
采用三组、重复测量设计。
43 名 8-14 岁的儿童接受了听觉处理评估，并分为三组：报告有 APD 的听力困难儿童、报告有听力困难但无 APD 的儿童和听力正常的儿童。APD 按照英国听力协会的标准定义。
所有三组参与者都存在 TEOAE 抑制。未观察到 TEOAE 抑制的组间、年龄或耳间效应，无论是以 dB 还是以正常化指数表示。
在本研究的参与者中，对侧 TEOAE 抑制方法不能作为一种临床工具来识别 APD，也不支持 MOC 功能降低与伴有或不伴有 APD 的儿童在背景噪声中的一般听力困难之间存在关联的假设。
