Observation of respiration-entrained brain oscillations with scalp EEG.
Observation of respiration-entrained brain oscillations with scalp EEG.
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用头皮脑电图观察呼吸引起的脑振荡。
DOI：
10.1016/j.neulet.2023.137079
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Ozaki I.
中科院分区：
文献类型：
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作者：
Watanabe T;Itagaki A;Hashizume A;Takahashi A;Ishizaka R;Ozaki I.
在动物模型中，鼻腔呼吸以呼吸周期的频率在嗅球和梨状皮质等脑区以及其他脑区引起局部场电位的振荡。在人类中的研究也证实了这些呼吸引导的振荡在几个大脑区域使用颅内脑电(EEG)。在这里，我们通过使用高密度头皮脑电对27名健康受试者的皮质活动和呼吸之间的一致性进行分析，从而扩展了这些发现。结果表明，头皮脑电和呼吸信号之间存在显著的一致性，尽管显示显著一致性的电极的数量和位置在不同的受试者之间有所不同。这些发现表明，头皮脑电可以检测到呼吸引起的振荡。这些振荡是从嗅觉脑区进行的体积传导，还是反映了局部的皮质活动，仍有待确定。
In animal models, oscillations of local field potentials are entrained by nasal respiration at the frequency of breathing cycle in olfactory brain regions, such as the olfactory bulb and piriform cortex, as well as in the other brain regions. Studies in humans also confirmed these respiration-entrained oscillations in several brain regions using intracranial electroencephalogram (EEG). Here we extend these findings by analyzing coherence between cortical activity and respiration using high-density scalp EEG in twenty-seven healthy human subjects. Results indicated the occurrence of significant coherence between scalp EEG and respiration signals, although the number and locations of electrodes showing significant coherence were different among subjects. These findings suggest that scalp EEG can detect respiration-entrained oscillations. It remained to be determined whether these oscillations are volume conducted from the olfactory brain regions or reflect the local cortical activity.