Department of Audiology, All India Institute of Speech and Hearing, Mysore, 570006, India.
Eur Arch Otorhinolaryngol. 2021 Aug;278(8):3073-3079. doi: 10.1007/s00405-021-06605-y. Epub 2021 Feb 2.
The present study aims at determining the influence of diurnal changes in duration discrimination and temporal resolution in the morning- and evening-type individuals with normal hearing sensitivity.
Sixty individuals with normal hearing were divided into morning, evening and intermediate types using the Morningness-Eveningness Questionnaire. Tests for Duration discrimination, Gap detection, and Temporal modulation transfer function were carried out in all the participants during morning and evening. The performance of subjects of all the three groups during both morning and evening was analyzed.
Results revealed a diurnal effect on morning and evening type individuals' performance where morning type exhibited better performance when tested during morning and evening individuals when tested during the evening. At the same time, there were no significant diurnal effects seen in the intermediate type.
The poor cognitive performance and lack of inhibitory control at the time of the off-peak hours possibly result in the poor scores. Furthermore, the diurnal effects on objective audiological tests in morning and evening type individuals should be studied. The influence of diurnal changes could be considered an extraneous variable in future research on psychoacoustic tests in younger adults.
本研究旨在确定具有正常听力敏感度的晨型和晚型个体在时长辨别和时间分辨率方面的日间变化的影响。
使用 Morningness-Eveningness Questionnaire 将 60 名具有正常听力的个体分为晨型、晚型和中间型。在上午和晚上，对所有参与者进行时长辨别、间隙检测和时间调制传递函数测试。分析所有三组在上午和晚上的表现。
结果显示，晨型和晚型个体的表现存在日间效应，即晨型在上午和晚上测试时表现更好，而晚型在晚上测试时表现更好。同时，中间型没有明显的日间效应。
在非高峰时间，认知表现不佳和缺乏抑制控制可能导致得分较低。此外，应该研究晨型和晚型个体在客观听力学测试中的日间效应。在未来对年轻成年人的心理声学测试研究中，应考虑日间变化的影响作为一个外来变量。
