TY - RPRT TI - Ultrafast fMRI detects age-related changes in harmonics of cardiac pulsations in the brain at 7 T AU - Marchini, C. AU - Abdelkarim, D. AU - Chai, Y. AU - Fabiani, M. AU - Gratton, G. AU - Sutton, B. P. PY - 2025 DO - 10.1101/2025.10.28.685077 UR - https://www.biorxiv.org/content/10.1101/2025.10.28.685077v1 ID - 10.1101/2025.10.28.685077 ER -