Cardio-respiratory interactions in interoceptive perception: The role of heartbeat-modulated cortical oscillations DOI Creative Commons
Andrea Zaccaro, Francesca della Penna, Francesco Bubbico

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Abstract The cardiovascular and respiratory systems are anatomically functionally integrated within the cardio-respiratory system. This close connection suggests that breathing continuously shapes cardiac interoceptive perception. Previously, we demonstrated interactions in heartbeat-evoked potential, a neural marker of cortical processing signals. Specifically, observed enhanced late potential positivity greater accuracy during exhalation compared to inhalation participants engaged tasks. Here, extended these findings time-frequency domain by reanalysing our previous dataset. We investigated heartbeat-modulated oscillations, examining power, inter-trial coherence, functional connectivity across cycle at rest, task (heartbeat counting), an exteroceptive control (cardiac-tone counting). Results revealed heartbeat counting task, heartbeat-related increased inhalation, particularly alpha theta frequency bands. These effects were primarily localized right fronto-centro-parietal electrodes. Furthermore, identified interactive relationships between oscillations band predicted accuracy. independent physiology absent task. proposed model framework predictive coding, suggesting occur multiple levels hierarchy: peripheral, brainstem, cortical. Our interpretation highlights role alpha-band modulations enhancing precision-weighting prediction errors, thereby facilitating attentional allocation signals suppression task-irrelevant distractors, exhalation.

Language: Английский

Predicting fluctuations in cardiac interoceptive accuracy and sensibility through additional heart rate variability reductions in everyday life DOI Creative Commons
Christian Rominger, Andreas Schwerdtfeger

Physiology & Behavior, Journal Year: 2025, Volume and Issue: unknown, P. 114928 - 114928

Published: April 1, 2025

Cardiac interoception, assessed in terms of accuracy (IAcc) and sensibility (IS; beside others), is important for health wellbeing. Ecological momentary assessment studies exploring the dynamics cardiac interoception showed substantial fluctuations IAcc IS everyday life. States increased (physiologically indicated) stress, such as decreased heart rate variability (HRV), may hamper interoceptive skills, while more relaxed states (higher HRV) seem to go along with IAcc. We built on this investigated if higher (physiological) stress indicated via HRV reductions independent metabolic needs (i.e., additional reduction, AddHRVr) could (differentially) predict IS, respectively. In an initial sample 119 participants, data (up to) three consecutive days, we simulated predictive value AddHRVr. found that AddHRVr before ambulatory task predicted poor IS. replicated pattern findings 66 participants. Both provide first insights into daily life, which seems differ when following This lays groundwork just time adaptive interventions (JITAIs) supporting individuals high vulnerability promoting skills.

Language: Английский

Citations

0
Cardio-respiratory interactions in interoceptive perception: The role of heartbeat-modulated cortical oscillations DOI Creative Commons
Andrea Zaccaro, Francesca della Penna, Francesco Bubbico

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Abstract The cardiovascular and respiratory systems are anatomically functionally integrated within the cardio-respiratory system. This close connection suggests that breathing continuously shapes cardiac interoceptive perception. Previously, we demonstrated interactions in heartbeat-evoked potential, a neural marker of cortical processing signals. Specifically, observed enhanced late potential positivity greater accuracy during exhalation compared to inhalation participants engaged tasks. Here, extended these findings time-frequency domain by reanalysing our previous dataset. We investigated heartbeat-modulated oscillations, examining power, inter-trial coherence, functional connectivity across cycle at rest, task (heartbeat counting), an exteroceptive control (cardiac-tone counting). Results revealed heartbeat counting task, heartbeat-related increased inhalation, particularly alpha theta frequency bands. These effects were primarily localized right fronto-centro-parietal electrodes. Furthermore, identified interactive relationships between oscillations band predicted accuracy. independent physiology absent task. proposed model framework predictive coding, suggesting occur multiple levels hierarchy: peripheral, brainstem, cortical. Our interpretation highlights role alpha-band modulations enhancing precision-weighting prediction errors, thereby facilitating attentional allocation signals suppression task-irrelevant distractors, exhalation.

Language: Английский

Citations

0