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The respiratory modulation of interoception.

Ludovic Molle, Alexandre Coste

Journal of Neurophysiology April 1, 2022 DOI: 10.1152/jn.00027.2022 (opens in new tab)

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AI-extracted from the abstract
Characteristics Commentary Peer reviewed
Keywords Consciousness Heartbeat Interoception Respiration
Key points Argues that the tendency to perceive fewer heartbeats during spontaneous heart-rate increases, which Larsson et al. attribute to reduced heartbeat strength during inspiration, may instead be explained by the influence of breathing phase on perception and resting brain activity, as suggested by consciousness research.

Abstract

In a recent article published in The Journal of Neurophysiology titled "Sensitivity to changes in rate of heartbeats as a measure of interoceptive ability," Larsson et al. (J Neurophysiol 126: 1799-1813, 2021) introduce a new method to evaluate the interoceptive ability and report a surprising tendency in humans to perceive fewer heartbeats during spontaneous increases in resting heart rate. The authors argue that this result reflects a reduction in the strength of the heartbeat during the inspiration periods. Here, we discuss this finding and propose a complementary interpretation grounded on consciousness research and an emerging literature showing the influence of the breathing phase on perception and brain activity at rest.

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