The amount of data that is becoming available on the brain, both the human one and the ones of those animals, like the mouse, that are used to study brain structures keeps growing on a daily base and has already reached staggering levels. There are now hundreds of terabytes of data on the brain, its connectivity structure, the way neurones talk with one another and so on.
At the Wyss Centre for Bio and Neuroengineering researchers have used terabytes of data to create a virtual reality clip (see below) in the brain, looking at it as it processes certain signals and even as it is experiencing certain emotions (in the clip shown the voyage takes us through the rewarding centres of the mouse brain).
They have published their results in a paper on Neuroscience 2017.
The goal is beyond producing some entertaining and fascinating clips. They hope that their rendering will make easier to understand the structure of the brain, its neural circuits and what is actually going on.