Big imaging data in action: large-scale analysis of 10,000 MRI volumes reveals fluctuations in brain size depending on time of the day

Diurnal fluctuations in brain volume

The brain shrinks over the course of the day, ending up smaller in the evening – before returning to its full size the next morning. That’s according to a new study from BIC Principal Investigators Arnold and Collins and collaborators, based on an analysis of about 10,000 MRI scans.

The study was published in Neuroimage, and Neuroskeptic - the popular neuroscience blog - has a post on it.