Most neuroscientists have considered the cerebellum (Latin for “Little Brain”) to have the relatively simple job of overseeing muscle coordination and balance. However, new findings show that the cerebellum is probably responsible for much, much more including the fine-tuning of our deepest thoughts and emotions. There is a report about the trials and triumphs of a man named Jonathan Kelcher who was born without a cerebellum.
His case study could open many new windows of understanding about how the brain and mind work by revealing what the very mysterious cerebellum is actually doing. Conventionally, neuroscientists don't give the cerebellum much credit for higher executive functions, cognition, psychiatric disorders, or emotional regulation. Luckily, this outdated viewpoint about the cerebellum is rapidly evolving.