Dr. Oliver Sacks is a neurologist with a talent for telling fascinating stories about his patients. In this video, he talks about the phenomena in which patients with Alzheimer’s are able to function almost normally when triggered by familiar songs or rhythm. Sacks has long been a proponent of music therapy, speaking of its power with the elderly during US Senate hearings on aging back in the early 90s when most people had never even heard of music therapy. He wrote an entertaining book about the neurologic effects of music on different patients called Musicophilia. (Incidentally, another fun read, albeit more general/technical is This is Your Brain on Music by Daniel Levitin).