The Pit Of Despair

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• published: 23 Oct 2009
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Gene Sackett of the University of Washington in Seattle, and another of Harlow's doctoral students who went on to conduct additional deprivation studies, said, in his view, "the Animal Liberation Movement in the U.S. was born as a result of Harlow's experiments." The "Pit Of Despair," or vertical chamber, was a device used in experiments conducted on Rhesus Macaque monkeys during the 1970s by American PSYCHOlogist, Harry Harlow, best known for his sadistic maternal-separation and social isolation experiments on rhesus monkeys. The aim of the research was to produce an animal model of human clinical depression in order to demonstrate the importance of tangible affection in social and cognitive development. Harlow's first experiments into the effects of loneliness involved isolating a monkey in a cage surrounded by steel walls with a small one-way mirror, so the experimenters could look in, but the monkey couldn't look out. The only connection the monkey had with the world was when the experimenters' hands changed his bedding or delivered fresh water and food. Baby monkeys were placed in these boxes soon after birth; four were left for 30 days, four for six months, and four for a year. After 30 days, the monkeys, "total isolates" as they were called, were found to be "enormously disturbed." After being isolated for a year, they barely moved, didn't explore or play, and were incapable of having sex. When put with other monkeys for a daily play session, they were badly bullied. Two of them refused to eat and starved themselves to death. The Chamber: The vertical chamber was little more than a stainless-steel trough with sides that sloped to a rounded bottom. A 3/8 in. wire mesh floor 1 in. above the bottom of the chamber allowed waste material to drop through the drain and out of holes drilled in the stainless-steel. The chamber was equipped with a food box and a water-bottle holder, and was covered with a pyramid top designed to discourage incarcerated monkeys from hanging from the upper part of the chamber. In order to find out how the isolates would parent, Harlow devised what he called a "Rape Rack," to which the female monkeys were tied in the position taken by a normal female monkey in order to be impregnated. Artificial insemination had not been developed at that time. The pervert PSYCHOlogist found that, just as the monkeys were incapable of having sexual relations, they were also unable to parent their offspring, either abusing or neglecting them. "Not even in our most devious dreams could we have designed a surrogate as evil as these real monkey mothers were," wrote the PSYCHOlogist. Having no social experience themselves, the monkeys were incapable of appropriate social interaction. One mother held her baby's face to the floor and chewed off his feet and fingers. Another crushed her baby's head. Most of them simply ignored their offspring. Though these sordid experiments showed what total and partial isolation did to developing monkeys, still, the PSYCHOlogist did not feel that he had captured the "essence" of Clinical Depression, and so the madman devised a new more sinister contraption, a depression chamber that drove baby monkeys into a desperate state of loneliness, helplessness, and a sense of being trapped. Harlow referred to this chamber as being sunk in a "well of despair," "dungeon of despair," and "well of loneliness." Most of the monkeys placed inside it were at least three months old and had already bonded with others. The point of the experiment was to break those bonds in order to create the symptoms of depression. According to Harlow: "most subjects typically assume a hunched position in a corner of the bottom of the apparatus. One might presume at this point that they find their situation to be hopeless." Steven Suomi, one of Harlow's many doctoral students, placed some monkeys in the chamber for his PhD. He wrote that he could find no monkey who had any defense against it. Even the happiest monkeys came out damaged. He concluded that even a happy, normal childhood was no defense against depression. Willam Mason, another of Harlow's students who continued deprivation experiments after leaving Wisconsin, said Harlow "kept this going to the point where it was clear to many people that the work was really violating ordinary sensibilities, that anybody with respect for life or people would find this offensive."