We revisit recent evidence showing that nasal respiration entrains oscillations at the same frequency as breathing in several regions of the rodent brain. Moreover, respiration modulates the amplitude of a specific gamma sub-band (70-120Hz), most prominently in frontal regions. Since rodents often breathe at delta and theta frequencies, we caution that previous studies on delta and theta power and their cross-regional synchrony, as well as on delta-gamma and theta-gamma coupling, may have detected the respiration-entrained rhythm and respiration-gamma coupling. We argue that the simultaneous tracking of respiration along with electrophysiological recordings is necessary to properly identify brain oscillations. We hypothesize that respiration-entrained oscillations aid long-range communication in the brain.

中文翻译：

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呼吸引起的脑节律是全球性的，但经常被忽视

我们重新审视最近的证据表明，鼻呼吸在啮齿动物大脑的几个区域以与呼吸相同的频率产生振荡。此外，呼吸调节特定伽马子带（70-120Hz）的振幅，在额叶区域最为突出。由于啮齿类动物经常以 delta 和 theta 频率呼吸，我们警告说，以前对 delta 和 theta 功率及其跨区域同步性以及 delta-gamma 和 theta-gamma 耦合的研究可能已经检测到呼吸夹带的节律和呼吸-伽马耦合。我们认为，同时跟踪呼吸和电生理记录对于正确识别大脑振荡是必要的。我们假设呼吸引起的振荡有助于大脑中的远程交流。