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Monkey clinging to the cloth mother surrogate in fear test. Harry Frederick Harlow (October 31, 1905 – December 6, 1981) was an American psychologist best known for his maternal-separation, dependency needs, and social isolation experiments on rhesus monkeys, which manifested the importance of caregiving and companionship to social and cognitive development.
Much of Harlow's scientific career was spent studying maternal bonding, what he described as the "nature of love".These experiments involved rearing newborn "total isolates" and monkeys with surrogate mothers, ranging from toweling-covered cones to a machine that modeled abusive mothers by assaulting the baby monkeys with cold air or spikes.
A 3/8 in. wire mesh floor 1 in. above the bottom of the chamber allowed waste material to drop out of holes. The chamber had a food box and a water-bottle holder, and was covered with a pyramid top so that the monkeys were unable to escape. [93] Harlow placed baby monkeys in the chamber alone for up to six weeks.
Harlow, being fascinated with the concept of love and nurturing, worked with monkeys to test these theories. (Berger, 2005) In Harlow's monkey experiment, newborn monkeys were separated from their mothers almost immediately after birth. They were then raised with substitute "mothers" made of either (1) wire or (2) wood covered with a soft cloth.
Maternal deprivation experiments on nonhuman primates have continued into the 21st century and remain controversial. Stephen Suomi, an early collaborator of Harlow, has continued to conduct maternal deprivation experiments on rhesus monkeys in his NIH laboratory and has been vigorously criticized by PETA, Members of Congress and others. [39 ...
In 2014, psychiatrist Ned Kalin was approved for experiments in which newborn monkeys were to be separated from their mothers, subjected to anxiety-inducing tests, and then euthanized. Kalin's experiments sparked outrage and condemnation, and a petition against Kalin's experiments was signed by over 290,000 people. [3]
Traps were being set around the Alpha Genesis Primate Research Center in Yemassee, where the rhesus macaque monkeys escaped en masse from their enclosures around 1 p.m. on Wednesday, according to ...
The effects of developmental homeostasis were demonstrated in an experiment conducted in 1966 by Margaret and Harry Harlow. They wanted to test what the consequences of infant rhesus monkeys would be from being separated from their mothers and having little interaction with other monkeys.