Wired talks to Oliver Sacks on Earworms, Stevie Wonder and the View From Mescaline Mountain:
The therapeutic power of music hit me dramatically in 1966, when I started working with the Awakenings patients at Beth Abraham in the Bronx. I saw post-encephalitics who seemed frozen, transfixed, unable to take a step. But with music to give them a flow, they could sing, dance, and be active again. For Parkinsonian patients, the ability to perform actions in sequence is impaired. They need temporal structure and organization, and the rhythm of music can be crucial. For people with Alzheimer’s, music incites recall, bringing the past back like nothing else.
Sacks has a new book out, Musicophilia: Tales of Music and the Brain.