Confounding effects of heart rate, breathing rate, and frontal fNIRS on interoception.

ABSTRACT: Recent studies have established that cardiac and respiratory phases can modulate perception and related neural dynamics. While heart rate and respiratory sinus arrhythmia possibly affect interoception biomarkers, such as heartbeat-evoked potentials, the relative changes in heart rate and cardiorespiratory dynamics in interoceptive processes have not yet been investigated. In this study, we investigated the variation in heart and breathing rates, as well as higher functional dynamics including cardiorespiratory correlation and frontal hemodynamics measured with fNIRS, during a heartbeat counting task. To further investigate the functional physiology linked to changes in vagal activity caused by specific breathing rates, we performed the heartbeat counting task together with a controlled bre

SUBMITTER: Candia-Rivera D 

PROVIDER: S-EPMC9712694 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature