Frequencies of inaudible high-frequency sounds differentially affect brain activity: positive and negative hypersonic effects.
Frequencies of inaudible high-frequency sounds differentially affect brain activity: positive and negative hypersonic effects.
复制标题
听不清的高频的频率听起来会差异地影响大脑活动：积极和负性超声效应。
DOI：
10.1371/journal.pone.0095464
复制
发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Oohashi T
中科院分区：
文献类型：
--
作者：
Fukushima A;Yagi R;Kawai N;Honda M;Nishina E;Oohashi T
高超音速效应是一种现象，其中包含大量非稳态高频成分（HFC）的声音高于人类听觉范围（最大值）。20 kHz）激活中脑和间脑，引起各种生理、心理和行为反应。然而，重要的问题仍然没有得到证实，特别是氢氟碳化合物的频率与高超音速效应的出现之间的关系。在这项研究中，为了研究高超声速效应与HFC频率之间的关系，（16千赫以上）的记录甘美兰音乐分为12个波段的组成部分，并将它们施加到受试者沿着与听觉成分（低于16 kHz），以观察α 2频率分量的变化（10-13赫兹）的自发脑电图测量从中央-顶-枕区（阿尔法-2脑电图），我们以前报告的高超音速效应的指数。我们的研究结果表明，在阿尔法-2脑电图的相互方向的变化取决于频率的氢氟碳化合物与可听低频分量（LFC）。当施加高于约32 kHz的HFC时，与仅施加可听声音时相比，Alpha-2 EEG显著增加（正高超音速效应），而当施加低于约32 kHz的HFC时，Alpha-2 EEG降低（负高超音速效应）。这些发现表明，高超音速效应的出现取决于不可闻HFC的频率。
The hypersonic effect is a phenomenon in which sounds containing significant quantities of non-stationary high-frequency components (HFCs) above the human audible range (max. 20 kHz) activate the midbrain and diencephalon and evoke various physiological, psychological and behavioral responses. Yet important issues remain unverified, especially the relationship existing between the frequency of HFCs and the emergence of the hypersonic effect. In this study, to investigate the relationship between the hypersonic effect and HFC frequencies, we divided an HFC (above 16 kHz) of recorded gamelan music into 12 band components and applied them to subjects along with an audible component (below 16 kHz) to observe changes in the alpha2 frequency component (10–13 Hz) of spontaneous EEGs measured from centro-parieto-occipital regions (Alpha-2 EEG), which we previously reported as an index of the hypersonic effect. Our results showed reciprocal directional changes in Alpha-2 EEGs depending on the frequency of the HFCs presented with audible low-frequency component (LFC). When an HFC above approximately 32 kHz was applied, Alpha-2 EEG increased significantly compared to when only audible sound was applied (positive hypersonic effect), while, when an HFC below approximately 32 kHz was applied, the Alpha-2 EEG decreased (negative hypersonic effect). These findings suggest that the emergence of the hypersonic effect depends on the frequencies of inaudible HFC.
登录
查看更多内容
影响因子：
3.7
作者：
Omata K;Hanakawa T;Morimoto M;Honda M
通讯作者：
Honda M
影响因子：
1.9
作者：
Burgdorf, J;Knutson, B;Ikemoto, S
通讯作者：
Ikemoto, S
影响因子：
2.4
作者：
DiFrancesco, Mark W.;Holland, Scott K.;Szaflarski, Jerzy P.
通讯作者：
Szaflarski, Jerzy P.
影响因子：
11.2
作者：
DUFFY, FH;BURCHFIEL, JL;LOMBROSO, CT
通讯作者：
LOMBROSO, CT
影响因子：
2.9
作者：
BRUDZYNSKI, SM;CHIU, EMC
通讯作者：
CHIU, EMC