harlow - case study 4 Flashcards
(10 cards)
what was the aim of Harlow’s monkey experiment
to investigate whether contact comfort or the provision of food is more important when forming infant-mother attachment in rhesus monkeys
who were the participants of harlow’s experiment
8 newborn Rhesus monkeys
what were the 2 groups in harlows experiment
monkeys with surrogate mother and monkeys with normal mothers
what year did Harlow do his monkey experiment
1958
independent variable of harlow’s experiment
whether the milk bottle was attached to the cloth or wire meshed surrogate
dependant variable of harlow’s experiment
the time spent on the surrogates
what were the results of harlow’s experiment
monkeys spent more time feeding on the cloth mother by a significant amount
why did harlow use Rhesus monkeys
because of their similar DNA to humans
what was the method of harlow’s experiment
- the newborn monkeys were immediately separated from their mothers
- before the experiment began the monkeys were placed into an individual cages with a cloth blanket
- next they put the monkeys in a controlled and isolated room that contained the 2 artificial monkeys: the cloth mother and the wire mother
what was the monkey’s reaction to their cloth blanket being taken and washed and why was this interesting
they showed intense emotional distress and this was curious because it contradicted the idea attachment was because of food
how were the 2 surrogate mothers different in harlow’s experiment
cloth mother: is made out of the cloth the monkey shad in their cages
wire mother: is made out of just wires with a milk bottle attached.
key findings in harlow’s experiment
there were many behavioural differences between the experiment and control groups
what were the behavioural differences between the control and experimental group in harlow’s experiment
- they were much more timid
-they didn’t know how to interact with other monkeys - they were easily bullies and wouldn’t stand up for themselves
- they had difficulty mating
- the females were inadequate mothers
in harlow’s experiment what was the difference between being in the experiment for 90 or less
the emotionally damaging behaviours can be reversed if contact is made before the end of the critical period (90 days )
what were the results of harlow’s experiment
- at any other time than hunger the monkeys clung to their cloth mother
- when experimenters blared loud sounds the monkeys ran straight to their cloth mother for comfort
- monkeys who did not form attachment became aggressive and unsociable
contribution to psychology
- hows finding helped shift the belief that infant attachments is not from breastfeeding and is actually contact comfort has a more important role
- fathers are now seen as equally capable in looking after children at home rather than the mothers
- it is vital that all of the children’s needs are met not just the physical ones
limitations of harlow’s monkey experiment
- ethics: the monkeys experienced psychological harm by being deprived of mothers and placed in stressful situations
- as the researchers used animal subjects, the results are har to generalise to the human population