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Trends Neurosci. 2018 Apr;41(4):186-197. doi: 10.1016/j.tins.2018.01.007. Epub 2018 Feb 9.

Respiration-Entrained Brain Rhythms Are Global but Often Overlooked.

Author information

1
Brain Institute, Federal University of Rio Grande do Norte, Natal, RN 59056-450, Brazil; These authors contributed equally to this work. Electronic address: tort@neuro.ufrn.br.
2
Institute for Physiology and Pathophysiology, Heidelberg University, 69120 Heidelberg, Germany; These authors contributed equally to this work.
3
Institute for Physiology and Pathophysiology, Heidelberg University, 69120 Heidelberg, Germany. Electronic address: andreas.draguhn@physiologie.uni-heidelberg.de.

Abstract

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.

KEYWORDS:

cross-frequency coupling; delta; gamma; local field potential; respiration; theta

PMID:
29429805
DOI:
10.1016/j.tins.2018.01.007
[Indexed for MEDLINE]

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