Ten days into his treatment, the doctors suggested that B-19 watch the porn film again. Over the next few days, he found that it could arouse him, and he would press the button to stimulate himself “to a point that, both behaviorally and introspectively, he was experiencing an almost overwhelming euphoria and elation and had to be disconnected, despite his vigorous protests.” But then the stimulation sessions started, delivered via the button that felt most pleasurable to him. Before being given control of the electrodes, B-19 had been shown a film “displaying heterosexual foreplay and intercourse.” He reacted with anger and revulsion.