Fig. 5

A Advective fluid flow fields for two sample subjects (upper/lower) during 6–24 h (left) and 24–48 h (right), glyph scale: 3\(\times \). B Locally (over \(\sim \)180 local subregions) averaged velocity field magnitudes for two sample subjects (upper/lower) during 6–24 h (left) and 24–48 h (right), scale as in C. C Streamline visualization of sample flow field over 24–48 h. (D Estimated 6–24 h flow speeds (velocity magnitude, see Methods) averaged brain-wide, over the cerebral cortex, over the subcortical white matter and in the brain stem for sleeping versus the sleep-deprived groups. E As for (D) but for 24–48 h interval. F Brain-wide fluid influx average for the sleeping and sleep-deprived groups over 6–24 h and 24–48 h