Abraham Wikler

Abraham Wikler (October 12, 1910 – March 7, 1981) was an American psychiatrist and neurologist who made important discoveries in drug addiction. He was one of the first to promote a view of addiction as conditioned behavior, and made the first observations of conditioned response in drug withdrawal symptoms. His research on conditioning and relapse played a pioneering role in the neuroscientific study of addiction. Provided by Wikipedia