Associations Between Age, Heart Rate Variability, and BOLD fMRI Signal Variability
Jonathan M. Morris, Stacey M. Schaefer, Yiyi Zhu, Jinx Recchio, Lauren K. Gresham, Sarah E. Skinner, Kareem Al‐Khalil, B. Suresh Krishna
This study examines the relationship between age, heart rate variability (HRV), and BOLD fMRI signal variability, finding that HRV positively correlates with BOLD variability while age-related decreases in BOLD are partially explained by cardiovascular factors.
bioRxiv · Nov 26, 2025 · PreprintNeuroscience