In his work with trauma patients, Dr. Rigg has observed how the brain is constantly reacting to sensory information, generating nonthinking reactions before our intelligent individual human brains are able to process the event and formulate a selfdriven response.

John is a professional musician, who became a physician in his 40s.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx