Robust brain complexity measurement using T2* informed multivariate sample entropy from multi-echo BOLD fMRI
Ning Wang, Mingyan Wu, Weihuan Fang, Jiawen Sun, Liwen Zhang, Naying He, Fuhua Yan, Kui Ying, Xingfeng Shao
The paper introduces a T2*-informed multivariate sample entropy method for fMRI data to better measure brain complexity and shows it detects significant group differences in older vs. younger adults.
bioRxiv · Dec 2, 2025 · PreprintBiophysics