Infant monkeys seperated from birth, placed in cages with 2 surrogate mothers:
Cloth for comfort
Wire with food
Time spent with each was recorded, stimuli like clapping symbols created fear to assess behaviour
Found monkey spend majority time with cloth surrogate, only visiting the wire surrogate when hungry
Permanent psychological damage caused, couldn't integrate back into the wild
(+) A03: Bowlby Support
Harlow's findings of contact comfort influenced Bowlby to suggest babies have the same instinct through monotropy
(-) A03: Ethical Issues
Harlow's study had several ethical concerns due to psychological harm, being unable to integrate back into the wild, meaning Psychology's reputation lowered
(-) A03: Extrapolation
Cannot extrapolate results due to intelligence difference between animals and humans, can't generalise
