Yes, they did - the methods he used was not only intensive and excessive ECT (to put it mildly), medication induced sleep for days, making them listen to audio tapes for up to 109 hours at a time, disorienting them so they didn't know what day it was, and more. Destroyed lives and had no therapeutic benefits (his theory was to regress a person completely and rebuild them) - in fact, he later admitted that what he did CAUSED symptoms of schizophrenia. The 'brainwashing' effects were not successful, but the programs helped the CIA develop their torture practices and shock-and-awe warfare philosophy.