Carolyn McGettigan is a researcher at University College London who studies the neural mechanisms of speech and production. So it was only natural that she teamed up with UK Beatbox champion Reeps One to uncover the mysteries behind his skill at producing percussion sounds with his mouth. She created a short film for the "Brains on Film" contest that details the results of comparing the beatboxing brain scans of Reeps One to those of a novice. I thought the film was a great description of both the technique of fMRI and the results of the study. Check it out here, or above.