Medical science can, and often does very successfully, use electrical stimulation to help trigger responses in the human body. However, the specificity of the stimulation needed (i.e. not zapping everything in the nearby radius) has long meant these sorts of implants were limited to pacemakers and cochlear implants. ...But not for long if our guest's research is anything to go by. A current research fellow investigating the use of light stimulation on genetically targeted neurons, Dr. McCormick is on the cutting edge of a potentially game changing technique in the treatment of disease.