In addition to LSD, Cameron also experimented with various paralytic drugs as well as electroconvulsive therapy at thirty to forty times the normal power. His "driving" experiments consisted of putting subjects into drug-induced coma for weeks at a time (up to three months in one case) while playing tape loops of noise or simple repetitive statements. His experiments were typically carried out on patients who had entered the institute for minor problems such as anxiety disorders and postpartum depression, many of whom suffered permanently from his actions.[8] His treatments resulted in victims' incontinence, amnesia, forgetting how to talk, forgetting their parents, and thinking their interrogators were their parents.[9][10]