Animal Studies Flashcards
animal studies evaluation
gloves and shapes extrapolated to unethical monkeys and babies
imprinting
forming an attachment and relationship with the first thing seen upon birth/hatching
Lorenz aim
investigating imprinting behaviours in greylag goslings
what did Lorenz say about imprinting behaviours?
they are genetically determined and species-specific
who did the goslings go to when box was removed in Lorenz’ study
their respective ‘mothers’, whom they had first imprinted on after hatching
critical period defined by Lorenz
12-17 hours
what did Lorenz conclude about imprinting(4 things)?
- imprinting occurs within a brief critical period
- once it has occurred it is irreversible
- if it doesn’t occur within 24h of hatching, goslings won’t be able to attach to mother
- imprinting directly linked to sexual behaviour –> animals mate with the object they imprinted upon (sexual imprinting)
why is it difficult to extrapolate Lorenz’ findings to human babies?
geese are more mobile and feed themselves from birth, while humans have longer period of dependence and form more complex attachments, so imprinting/ 24h critical period isn’t applicable to other species
Regolin (1995)
exposed chicks to simple shapes
imprinted on them immediately after hatching
imprinting = innate mechanism
Harlow aim
investigate whether attachment due to food or contact comfort
Harlow conclusions
Contact comfort more important in forming attachments than food
how many monkeys did Harlow study and for how long?
16 monkeys, for 165 days
which ‘monkey’ had the food
the wire monkey
which ‘mother’ did the monkeys prefer? How did Harlow conclude this?
the cloth monkey, spending most of their time with it, despite wire monkey providing food
what happened when Harlow scared the monkeys with a mechanical figure?
they fled to the cloth mother for comfort