Harlow

• Animals Harlow studied were Rhesus monkeys
• Aim - to investigate the nature of attachment on baby monkeys
• Method - 8 monkeys placed in cage with two mothers
• Mothers either made of wire mesh with feeding bottle or made of cloth but did not contain bottle
• results - spent most of their time cuddling with cloth covered mother and only used wire to feed
• monkey grew up and showed signs of social and emotional disturbance
• conclusion - monkeys develop attachment based on contact comfort + not based on food
• evaluation - lab experiment, can't be generalised as were monkeys, ethical problems, lacks ecological validity as in lab