Tracking Sleep-Linked Brain Fluid Dynamics Using Modified fNIRS: A Novel Noninvasive Window into Glymphatic Function
Sujasha Gupta, Franck Amyot, William G. Coon, Angeliki Pollatou, Lillian Skeiky, Srija Seenivasan, K Kenney, Angelica Lee, Matthew Lettieri, Adriana I. Penafiel, Samrawit Yalewayker, Ethan Cheraghpour, P Sheth, Elizabeth C. Metzger, Clara A. Scholl, J. Kent Werner
This paper develops a non-invasive fNIRS method to measure cortical water dynamics during sleep, linking water oscillations to glymphatic function and sleep depth.
bioRxiv · Oct 27, 2025 · PreprintNeuroscience