3. Animal Studies Of Attachment Flashcards
What did Lorenz research?
Imprinting on geese (ridifugous birds)
What is the independent variable in Lorenz’s study?
Whether the birds saw their mother or Lorenz as the first moving object
What is the dependant variable in Lorenz’s research?
Who the goslings followed after they hatched
What procedure did Lorenz use to discover imprinting?
- Field experiment
- divided a clutch of eggs into 2 groups (one saw mother first, one saw Lorenz first and were kept near him in incubator)
- Measured imprinting by releasing them from upturned box and seeing who they went to first
Who did the incubator goslings imprint on?
Followed Lorenz everywhere (control group followed mother)
Define Imprinting
Ridifugous birds follow the first large moving object they see
What was the critical period Lorenz found for imprinting?
4-25 hours (irreversible, and after which they did not imprint at all)
What is sexual imprinting?
A later case study in 1952 found that species show courtship to species of attachement figure (e.g. peacock showed sexual attraction to giant tortoise because of this)
Describe the generalisability of Lorenz’s study
Lorenz only studied geese which are less emotional and complex than humans so findings cannot necessarily be generalised to humans
How did a study by Guiton et. Al in 1996 contradict Lorenz’s suggestion that imprinting was permanent?
Chickens imprinted on rubber gloves were able to earn to be sexually attracted to other chickens, so sexual imprinting or imprinting may not be permanent
What influence did Lorenz’s study have in psychology?
- Suggestion that imprinting was innate
- Lead to theories there was a critical period for humans
What did Harlow study?
Contact comfort in rhesus monkeys
How did Harlow test this?
Reared 8 baby monkeys with wire mother and cloth mother- wire mother or cloth mother dispensed milk
Who did the monkeys seek comfort with?
The soft cloth mother- regardless of who gave them milk
What was more important for the monkeys? Food or comfort?
Comfort