imprinting and comfort vs food

Question 1

imprinting study

Answer 1

lorenz
geese precocial - whatever mum does, they do
split them in half and kept one half in incubator
critical period was first 32 hours
they imprinted on him as it was the first thing they saw
early Imprinting has an effect on later mate preferences ( sexual imprinting)

Question 2

comfort vs food study

Answer 2

Harlow
8 rhesus baby monkeys
4 weaned with cloth mother vs 4 weaned with wire mother
even if weaned on wire mother they went to cloth more for comfort
when scared by mechanical teddy bear they went to cloth mother for comfort
infants attach to those who comfort them not those who feed them