强烈的低频声音会短暂地影响人的声音偏侧。

IF 2.6 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
PLoS ONE Pub Date : 2025-06-30 eCollection Date: 2025-01-01 DOI:10.1371/journal.pone.0327525
Carlos Jurado, Benedikt Grothe, Markus Drexl
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引用次数: 0

摘要

强烈的低频(LF)声音暴露会短暂地改变听力阈值和耳蜗敏感性的其他标志,对于这些变化,人们创造了“反弹现象”(BP)一词。在BP下,听力阈值在几分钟内缓慢振荡,涉及高敏感和低敏感的两个阶段,我们有理由认为,远高于阈值的声音感知也会受到影响。在这里,我们评估了血压对健康人听觉偏侧的影响。声音横向化主要取决于声音的频谱内容对声级或时间差(分别为ILDs和ITDs)的处理。需要感知头部中间虚拟声源的ILD被追踪时间。测量是在没有和之前在左耳中暴露强烈低频声音的情况下进行的,以引起血压。在65%的录音中,在lf声音停止后观察到与感知中线的显著时变偏差。换句话说,在中间感知到的双耳刺激在强烈的低频声音出现后会感知到移动到一侧,并经常回到中间。这意味着强烈的低频声音暴露会导致基于低频声音定位的偏置。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Intense low-frequency sound transiently biases human sound lateralisation.

Intense low-frequency (LF) sound exposure transiently alters hearing thresholds and other markers of cochlear sensitivity, and for these changes the term 'Bounce phenomenon' (BP) has been coined. Under the BP, hearing thresholds slowly oscillate for several minutes involving both stages of hyper- and hyposensitivity and it is reasonable to assume that the perception of sounds at levels well above threshold will also be affected. Here, we evaluated the effect of the BP on auditory lateralisation in healthy human subjects. Sound lateralisation crucially depends on the processing of either interaural level- or time differences (ILDs and ITDs, respectively), depending on the spectral content of the sound. The ILD needed to perceive a virtual sound source in the middle of the head was tracked across time. Measurements were carried out without and with a previous exposure to an intense LF-sound in the left ear, to elicit the BP. In 65% of the recordings, significant time-variant deviations from the perceived midline were observed after cessation of the LF-sound. In other words, a binaural stimulus perceived in the middle moved perceptually to the side and often back to the middle after presentation of the intense LF-sound. This means that intense LF-sound exposure can lead to a biasing of ILD-based sound localisation.

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来源期刊
PLoS ONE
PLoS ONE 生物-生物学
CiteScore
6.20
自引率
5.40%
发文量
14242
审稿时长
3.7 months
期刊介绍: PLOS ONE is an international, peer-reviewed, open-access, online publication. PLOS ONE welcomes reports on primary research from any scientific discipline. It provides: * Open-access—freely accessible online, authors retain copyright * Fast publication times * Peer review by expert, practicing researchers * Post-publication tools to indicate quality and impact * Community-based dialogue on articles * Worldwide media coverage
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