This is from an article about mind control/brainwashing techniques.

Father, Son and CIA

"Isolation: According to Biderman, the POW was removed from his group and kept by himself. My father was placed in a darkened and quiet room by himself in a special part of the hospital.

Monopolization of perception: Biderman was here making reference to a process of cutting off stimulation from the environment. POWs were kept in physical isolation with restricted movement, monotonous food and darkness. My father was placed in a condition of partial sensory deprivation which also results in markedly reduced perception of surroundings and a focusing of attention upon the internal processes of thinking and body sensations.

Induced debilitation or exhaustion: Illness was induced in the POW by procedures designed to produce exhaustion, such as prolonged interrogation or forcing him to write down all his thoughts. My father was made ill with shock treatments, drugs and sleep. In addition, my father and other Cameron patients were told to fill notebooks with their thoughts as they listened to voices. The patients were forced to listen to the recorded messages sixteen hours a day — loud voices, soft, male, female, multiples of voices pressuring patients who had been rendered confused and defenceless.

Threats were another element of the brainwashing process. POWs were exposed to all kinds of threats to themselves or their families. My father faced the threat of endless isolation with the possibility of being cut off from his family forever.

Occasional indulgences or favours were offered to soften up the POWs. These might include special foods or exercise. My father was permitted rare telephone calls to our family or an occasional bath.

Demonstrating "omnipotence" and "omniscience": the captors had complete control over the fate of the POWs; they had complete knowledge of their activities. My father waited anxiously for Cameron, since he had rendered the patients so totally dependent upon him. Cameron and his associates also demonstrated their complete control by having nurses question patients every two hours about what they were hearing on the psychic driving tapes.

Degradation reinforced the helplessness of the POWs: they were not permitted to attend to personal hygiene, they were not allowed privacy, and they were subjected to insults and taunts. My father, like other Cameron patients, was made incontinent in bladder and bowel. At times he was fed through a tube. The patients endured insults through the psychic driving messages ("You're a bad mother"). Doctors and nurses entered their rooms at will; and my father's questions of them were ignored: "What do you want?" he would ask in vain. Powerlessness was magnified by this complete disregard for human dignity.

Enforcing trivial demands: POWs were forced to obey detailed rules that governed even the simplest part of their days. My father and the other patients were forced to remain in their cubicles, go to the toilet on demand, eat when told to, and obey Cameron's instructions without question.