Neural Representation of Loudness: Cortical Evoked Potentials in an Induced Loudness Reduction Experiment

Neural Representation of Loudness: Cortical Evoked Potentials in an Induced Loudness Reduction Experiment
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响度的神经表征:诱导响度降低实验中的皮质诱发电位

DOI:
10.1177/2331216519900595
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发表时间:
2020
期刊:
影响因子:
2.7
通讯作者:
B. Kollmeier
B. Kollmeier
中科院分区:
医学1区
文献类型:
--
作者:
Florian H Schmidt;Manfred Mauermann;B. Kollmeier

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响度上下文效应包括对目标刺激响度判断的差异,这取决于前面的诱导音的存在。诱导音与靶音之间约200 ms及以上的刺激间隔(ISIs)可引起靶音的诱导响度降低(ILR)。随着ILR的增加,目标刺激的感知响度随ISI的增加而降低。这反过来意味着,相同的刺激在不同的环境中有不同的感知响度。因此,在ILR实验中,脑电图反应的特定特征与感知响度之间的相关性将提供响度处理的神经生理学指示,而不仅仅是刺激强度的神经表征。为了检验这种相关性是否存在,我们在不同ISIs的心理声学ILR实验中研究了75 - 510 ms潜伏期的皮质脑电图反应。随着ISI的增加,相应脑电图反应的N1-P2偏转强度与目标音调脉冲的响度感知相似地降低。这表明在相应的处理阶段,表征是基于响度而不是强度。
Loudness context effects comprise differences in judgments of the loudness of a target stimulus depending on the presence of a preceding inducer tone. Interstimulus intervals (ISIs) between inducer tone and target tone of about 200 ms and above cause an induced loudness reduction (ILR) of the target tone. As the ILR increases, respectively, the perceived loudness of the target stimuli decreases with increasing ISI. This in turn means that identical stimuli in a different context have a differently perceived loudness. A correlation between specific characteristics in the electroencephalography responses and perceived loudness in an ILR experiment would therefore provide a neurophysiological indication of loudness processing beyond a neural representation of stimulus intensity only. To examine if such a correlation exists, we investigated cortical electroencephalography responses in a latency range from 75 to 510 ms during a psychoacoustical ILR experiment with different ISIs. With increasing ISI, the strength of the N1-P2 deflection of the respective electroencephalography response decreases similarly to the loudness perception of the target tone pulse. This indicates a representation based on loudness rather than on intensity at the corresponding processing stage.
根据突发音调诱发反应估计响度增长。
DOI: 10.1121/1.3397457
发表时间: 2010
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者:
Silva,Ikaro;Epstein,Michael
通讯作者: Epstein,Michael
客观估计听力受损听众的响度增长。
DOI: 10.1121/1.3666024
发表时间: 2012
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者:
Silva,Ikaro;Epstein,Michael
通讯作者: Epstein,Michael
DOI: 10.1016/s0167-8760(99)00070-7
发表时间: 1999-11-01
影响因子: 3
作者:
Bennington, JY;Polich, J
通讯作者: Polich, J
DOI: 10.1037//0096-1523.19.2.227
发表时间: 1993
期刊: Journal of experimental psychology. Human perception and performance
影响因子: --
作者:
Marks,LE
通讯作者: Marks,LE
诱导响度降低中测试音持续时间和诱导音持续时间之间的相互作用。
DOI: 10.1121/1.1616580
发表时间: 2003
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者:
Nieder,Bärbel;Buus,Søren;Florentine,Mary;Scharf,Bertram
通讯作者: Scharf,Bertram