The brain is our most mysterious, complicated, and least-understood organ. This is perhaps strange, when you consider that the study of the brain is essentially a group of brains trying to work themselves out. The brain monitors our bodies, keeps everything running smoothly behind the scenes, controls all of our thoughts, emotions and memories, and much more. It's an organic supercomputer, the pinnacle of evolution so far.
Despite humans all having one, science is still learning how the brain is formed, what it does, and how it does it. This study has already yielded incredible findings, which have translated to a better understanding of the way we develop and function. But there is still much more to learn. And to learn it, scientists need to get a good look at what's going on inside our heads. Here's an introduction to just a few of the ways that they do it.