Fig. 4From: Human brain solute transport quantified by glymphatic MRI-informed biophysics during sleep and sleep deprivationPredicted versus observed average tracer concentration in cerebral cortex (A) and subcortical white matter (B) under diffusion and diffusion–reaction for sleep and sleep-deprived groups combined. Error bars indicate standard deviation. C Optimal enhanced diffusion factors \(\alpha \) and local clearance rates rBack to article page