Sleep increases propagation speed of physiological brain pulsations
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa O. Korhonen, Tapio Seppänen, Vesa J. Kiviniemi
The paper measures CSF flow velocity during sleep and finds it increases due to stronger vasomotor and respiratory pulsations, while cardiovascular speed remains unchanged.
bioRxiv · Jan 9, 2025 · PreprintNeuroscience