Harlow's Rhesus Monkey Experiment

One of the studies was conducted by Harlow in 1959 who wanted to study the mechanisms by which new-born rhesus monkeys bond with their mothers. He tested the learning theory by comparing attachment behaviour in the monkeys given wire surrogate mother producing milk with those given a soft towelling mother producing no milk.

Within this essay, we will study more in depth the behavioral as well as physical traits of two primates at a zoo from their interaction with their peers to their place in the group. This observation would enable us to further understand the possible existing correlation between humans and primates. First, I studied a female chimpanzee with her baby, and then, a dominant male gorilla, in San Francisco Zoo at about noon, on May 23, 2015, for an hour each. Even though they share some similarities such as having a large brain, living for a long time, and being bored in their enclosure, they are still different; when gorillas are the largest, chimpanzees are the smartest. In fact, chimps use tools to catch food, they would not be able to reach

This experiment in my opinion was useful to psychology. But I don’t agree with the methods that were applied. The researchers taught some behaviours to the monkeys that unless humans never show them how to do they will never do it by themselves, like

I agree that the Harry Harlow study is entirely relevant to life today, useful, and in no way cruel to the monkeys involved. It demonstrates the importance of contact comfort

Harlow gathered 16 rhesus monkeys, placing some with a cloth covered monkey that did not produce food, and some with a wired monkey that dispensed food. With this presence, it was found that the newborns didn’t die as they had the cloth to cuddle. It was found that the monkeys would rather cuddle the cloth covered monkey rather than the wired one which produced food, just to establish a sense of contact comfort, which was much more important for the attachment of the monkeys. Harlow also followed monkeys which had been deprived of a ‘real’ mother at birth and found the wire mother reared monkeys were dysfunctional but those with the cloth covered one didn’t develop normal social

Harry Harlow 's research on monkey 's support 's Bowlby 's theory of attachment as he investigated ‘the nature of human love and affection ' (Cherry, 2016) through monkeys. This shows Harlow 's experiments demonstrated the importance of early attachments, emotional bonds and how attachment increases a healthy development. Harlow 's experiment consisted of ‘two wired surrogate mothers and an infant monkey separated from their mother hours after birth. One of the wired monkeys had a soft terrycloth around it and the other one only had food attached with to it. ' (Cherry, 2016) This was set up to find out which wired monkey the baby monkeys would be attached to more. Harlow 's study showed that ‘the

“In the course of raising these infants we observed that they all showed a strong attachment to the cheesecloth blankets which were used to cover the wire floors of their cages. Removal of these cloth blankets resulted in violent emotional behavior. These responses were not short-lived; indeed, the emotional disturbance lasted several days, as was indicated by the infant's refusal to work on the standard learning tests that were being conducted at the time” (Harlow, 1959). The infant monkey would become distressed when its comfort blanket, a cheesecloth, was removed so this started the experiment to see if the monkey would prefer a nourishing mother or a comforting mother.

There was sadness and wrong-doing on so many levels, yet this rare forbidden case study of child development and language was one that helped further our knowledge on the subject. Straddling the line between caretaker and therapist proved to be a tough job for all the professionals involved in Genie’s case. On one hand, Genie deserved to be genuinely nurtured and cared for by someone that was separate from the scientific experiments being conducted. On the other hand, she needed scientists and therapists who were dedicated to studying her behavioral growth patterns without having her become so dependent on them. That would be the case in a perfect world, but the reality is things are hardly ever even close to being perfect. And Genie’s story was no

This paper aims to study the traits of non-human primates. By observing two types of primates including Common Squirrel Monkey (Saimiri sciureus) and Western Gorillas (Gorilla Gorillas), I try to find out their characteristics, pattern of their behavior, and differences between these two primate species. Especially, characteristics and behavior such as social interaction, food acquisition and intelligence will be discussed and compared in this paper. In order to enhance the persuasiveness of my observation, I recorded and examined at least 25 distinct characteristics of both Common Squirrel Monkeys and Western Gorillas. It is also helpful for me to compare these two primates. Apart from exploring the primates’ traits and differentiation between them, this paper will discuss the effects of captivity. How being in captivity and on display in a zoo would influence their behaviors and emotions? The observation was a great success and I have successfully derived with a hypothesis base on our observing data. The ultimate goal of this paper is arousing humans’ awareness of the importance of studying primates.

In the mid 1900s, Harry Harlow took investigated a new field of research and began studying the components between infant-mother love, especially the importance of contact comfort. Harlow was interested in manipulating the mother figure of infants to identify the root of bonds and love; but since this could easily become unethical to study with humans, he used rhesus monkeys. Based on Freud’s hypothesis, one would think that the importance of receiving milk would be the primary root of a bond between the infant and the mother, but Harlow found that contact comfort was incredibly important, even more so than receiving food (Hock, 2013).

Harry Harlow’s thorough research on the connection between maternal comfort and rhesus monkeys provides information and knowledge to the reader as an insight into our social and emotional development. In this article, Harlow uses experimental observation of mental and emotional associations of the affectionate ties between the child and the mother. As Harlow says, this is “an instinct incapable of analysis”.

Lorenz (1935) revealed strong bonds with non-humans with first moving objects that they encounter; which was not always with the mother. In precocial species the mobile young animal needs to quickly identify its caregiver and remain close to them for survival. This is known as imprinting. As this happens before any feeding has taken place the study on Rhesus monkeys does not apply in the same way. Firstly Lorenz used goslings which are called precocial; meaning that they quickly develop to move around, and have well developed sense organs.

In 1988 at the University of Zurich, Eduard Stammbach set up an experiment with long tailed macaque monkeys to determine if they were able to rein aggressive behavior and act cooperatively. Subgroups of monkeys were created, and the lowest ranking monkey was taught to press a set of levers in a specific sequence that caused a machine to deliver popcorn. The high-ranking monkeys noticed the low ranking monkeys’ unique skills. The high-ranking monkeys soon began grabbing all the popcorn. Before long the low ranking monkeys stopped operating the machine. This did not last long because the higher-ranking monkeys began to change their behavior. The higher-ranking monkeys began to approach the lower ranking monkeys more peacefully, and allowed the lower ranking monkeys a share of the popcorn. Furthermore some higher-ranking monkeys began to groom the lower monkeys even when the machine was inoperative.

Harlow stated that attachment was important but it did not ensure normal social development. We saw proof of that behavior earlier with the twins when they did not function as well in an

Dian helped us connect even more to the foreign primates by focusing on the different habits of mother, baby, and adolescent gorillas. Giving each gorilla a name, Fossey helped us almost humanize the animals through her vivid descriptions of their personality and behavior. She showed us that gorilla mothers protect, care for, and discipline their infants. Gorilla babies develop much the same ways humans do; acquiring skills as they age. Adolescents can be just as curious as they are mischievous. Fossey's work helps replace the image of the gorilla as a ferocious animal into one that is kind, gentle, and more human-like that we had never known.