Heart Rate Variability and Autonomic Control

The paper introduces HRPI, a threshold-free metric for sustained heart rate elevation, and shows it captures more structure than mean HR and declines with age.

This study explores if baseline heart rate variability (HRV) predicts susceptibility to ASMR and music-induced frisson in a small sample.

The paper identifies autonomic phenotypes in older adults from a high-southern-latitude population using integrated HRV and physiological data, revealing a multidimensional structure of autonomic heterogeneity.

This study shows that cardiac signals influence activity in the posterior insular cortex and emotional processing, with neurons tuned to heartbeats during specific phases of the cardiac cycle.

This study identifies a reproducible, temporally structured multimodal sympathetic nervous system startle response in humans, with potential diagnostic utility.

The paper develops the React & Rebound model to extract emotion regulation parameters from wearable HRV data and validates them against anxiety symptoms.

This study uses TREV to measure cardiac contractility during threat anticipation and finds it correlates with neural activity and emotional responses better than skin conductance responses.

This study investigates how PIEZO 1 channels in cardiac sensory neurons modulate anxiety by affecting interoception and predictive coding.

This study shows that cardiorespiratory coupling during memory encoding predicts trial-level accuracy but not retention, highlighting its role in cognitive performance.

The paper examines physiological and neural activity during naturalistic learning situations using EEG and ECG, showing systematic variations in heart rate, heart rate variability, and brain activity across learning phases.

This study shows that Dance Movement Therapy improves vagally-mediated heart rate variability in older adults, suggesting benefits for physical and mental health through enhanced social interaction and well-being.

This study identifies vagal cardiac mechanoreceptors as critical for compensating blood loss and posture changes by regulating blood pressure.

This study examines age-related and sex-dependent cardiac dysfunction in Microcebus murinus by analyzing heart rate and variability under stress and autonomic modulation.

This study develops a medulla stimulation strategy to regulate heart rate using closed-loop control and evaluates its effectiveness in restoring autonomic balance.

The paper identifies an asymmetric blood flow pathway between the nucleus of the solitary tract and area postrema in rats, revealing structural and functional differences in their capillary networks.

The paper investigates cardiac-cerebrovascular interactions in elderly individuals, finding that constrained ventilation and impaired cerebrovascular control are associated with elevated cardiac sympathetic activity.

This study tracks the development of heart-brain circuits in larval zebrafish, revealing three stages of functional maturation involving vagal motor, sympathetic, and sensory pathways.

This study shows that acute exogenous ketone monoester supplementation reduces cardiac vagal modulation in a dose-dependent manner in healthy adults.

This paper uses facial micro-movements and heart rate variability to detect pressure pain and its impact on physiological signals across different tasks.

This paper introduces a convex gamma GLM for heartbeat dynamics, improving parameter estimation and enabling prediction and information quantification in cardiac data.

This paper introduces a second-order Poincare plot to analyze heart rate variability, revealing respiratory effects through serial dependencies in RR intervals.

The paper identifies two specialized intrinsic cardiac neuron subtypes in mice that play distinct roles in maintaining cardiac homeostasis and stress resilience.

The paper shows that heart rate changes influence behavior and brain activity in larval zebrafish, with specific brain regions encoding heart rate signals.

This study uses direct causality measures to analyze cardiovascular networks during rest and postural stress, revealing new interactions and dynamics.

This study examines how cardiac interoception influences transitions between thought states and autonomic nervous activity, showing that interoceptive accuracy affects thought persistence and transitions during task performance.

This study examines pupil diameter oscillations (hippus) during the diving reflex in apnea with and without facial immersion, finding changes in autonomic balance and signal complexity.

This study validates Garmin's stress score against HRV metrics from ECG recordings, finding significant correlations and differences between stress and rest conditions.

This study investigates how pleasant odors affect autonomic responses and brain-body rhythm coupling compared to music, finding that odors uniquely slow breathing and synchronize physiological and neural activity.

The paper analyzes neural responses to extrasystoles using EEG and ECG data, finding reduced HEP for ventricular extrasystoles and increased HEP in postextrasystolic beats.

This study uses transcranial stimulation to show that frontal delta oscillations causally affect heartbeat perception, with enhanced synchrony reducing detection accuracy.