期刊
ELIFE
卷 10, 期 -, 页码 -出版社
eLIFE SCIENCES PUBL LTD
DOI: 10.7554/eLife.70907
关键词
respiration; body-brain coupling; alpha oscillations; interoception; neural excitability; Human
类别
资金
- Interdisciplinary Center for Clinical Research, University of Munster [Gro3/001/19]
- Deutsche Forschungsgemeinschaft [GR2024/5-1, BU2400/9-1]
Recent studies have shown that respiration significantly modulates perceptual sensitivity and cortical excitability, with maximal changes occurring at a respiration phase lag of around -30 degrees to enhance performance.
Recent studies from the field of interoception have highlighted the link between bodily and neural rhythms during action, perception, and cognition. The mechanisms underlying functional body-brain coupling, however, are poorly understood, as are the ways in which they modulate behavior. We acquired respiration and human magnetoencephalography data from a near-threshold spatial detection task to investigate the trivariate relationship between respiration, neural excitability, and performance. Respiration was found to significantly modulate perceptual sensitivity as well as posterior alpha power (8-13 Hz), a well-established proxy of cortical excitability. In turn, alpha suppression prior to detected versus undetected targets underscored the behavioral benefits of heightened excitability. Notably, respiration-locked excitability changes were maximized at a respiration phase lag of around -30 degrees and thus temporally preceded performance changes. In line with interoceptive inference accounts, these results suggest that respiration actively aligns sampling of sensory information with transient cycles of heightened excitability to facilitate performance.
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