animal studies of attachment Flashcards
Lorenz and Harlow
what do animal studies look at?
at the formation of early bonds between non-human parents and their offspring
why are psychologists interested in animal studies?
attachment-like behaviour is common to a range of species and can help us understand attachment in humans
what animals did Lorenz study?
geese
what did Lorenz study in geese?
imprinting
what is imprinting?
whereby bird species that are mobile from birth attach to and follow the first moving object they see
what was Lorenz procedure?
he randomly
divided a clutch of goose eggs. half the eggs were hatched with the mother goose in their
natural environment. the other half hatched in an incubator where the first moving object
they saw was Lorenz
what was Lorenz findings?
the incubator group followed Lorenz everywhere whereas the control group, followed their mother. when the two groups were mixed up, the control group continued to follow the mother and the experimental group followed Lorenz.
what did Loren identify that needs to happen for birds to imprint?
a critical period
what did Lorenz find about sexual imprinting?
birds that imprinted on a human would often later display courtship behaviour towards humans
one strength of Lorenz’ geese
these results of imprinting suggest that the cause of attachment is due to nature as opposed to nurture.
one weakness of Lorenz’ geese
Lorenz was interested in imprinting in birds. although some of his findings have influenced
our understanding of human development, there is a problem in generalising from findings on birds to humans.
what animals did Harlow study?
rhesus monkeys
what was Harlow’s procedure?
8 monkeys which were caged from infancy with wire mesh food dispensing surrogate mothers and cloth-covered surrogate mothers, to investigate which of the two would have more attachment behaviours directed towards it. Harlow measured the amount time that monkeys spent with each surrogate mother.
what was Harlow’s findings?
separated infant rhesus monkeys showed attachment behaviours towards a cloth-covered surrogate mother when frightened, rather than a food-dispensing surrogate mother. monkeys were willing to explore a room full of novel toys when the cloth-covered monkey was present but displayed phobic responses when only the food-dispensing surrogate was present. this showed that ’contact comfort’ was of more importance to the monkeys than food when it came to attachment behaviour.
what consequences did maternally deprived mothers have as adults?
more aggressive and less sociable than other monkeys, unskilled at mating. as mothers, some neglected their young and others attacked them, killing them in some cases.