Some participants developed their roles as the officers and enforced authoritarian measures and ultimately subjected some prisoners to psychological torture.Many of the prisoners passively accepted psychological abuse and, by the officers' request, actively harassed other prisoners who tried to stop it.Zimbardo, in his role as the superintendent, allowed abuse to continue.Two of the prisoners left mid-experiment, and the whole exercise was abandoned after six days following the objections of graduate student Christina Maslach, whom Zimbardo was dating (and later married).She filled out a questionnaire and carefully crafted her profile.It would have been easy to burnish the truth, but she presented herself honestly, from her age (57) and hobbies ("dancing, rock collecting") to her financial status ("self sufficient").Certain portions of the experiment were filmed, and excerpts of footage are publicly available.
According to the lore that’s grown up around the experiment, the guards, with little to no instruction, began humiliating and psychologically abusing the prisoners within twenty-four hours of the study’s start.
the morning of August 17, 1971, nine young men in the Palo Alto area received visits from local police officers.
While their neighbors looked on, the men were arrested for violating Penal Codes 211 and 459 (armed robbery and burglary), searched, handcuffed, and led into the rear of a waiting police car.
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