Konrad Lorenz randomly divided a
large clutch
of goose eggs :
'
one hatched with the mother
half were
goose in the natural environment
hatched moving
'
the other in an incubator where the
first object they saw was Lorenz .
Mixed all
goslings to see whom
they would
follow
Lorenz also observed birds and their later courtship behaviour
Findings and conclusions .
Incubator mother
group followed Lorenz , control
group followed
.
Lorenz
identified critical peroia which
imprinting needs to take place hours
hatching
a in
eg few after
: .
,
within time
If imprinting didn't occur that ,
chicks didn't attach themselves to the mother
figure .
Sexual
imprinting also occurs
whereby the birds acquire a template of the desirable characteristics in a mate .
Harlow C. 1958) importance of
contact
comfort
procedural
16 www.e '
Harry Marlow with model '
reared rhesus 2
monkeys mothers
wire
'
condition milk the
plain
'
1
despensea by mother
'
: was
condition 2 : dispensed
'
'
milk hovered
was
by the cloth mother
The
monkeys preference was recorded
To measure attachment like behaviour ,
Harrow observed how the
monkeys reacted when
placed in
frightening situations
to
eg he added a noisy mechanical
teddy bear the environment
:
Harrow + his also to the have been deprived their
'
into
colleagues
adulthood
mother
'
continued
study monkeys who
of
real
Findings and conclusions
wire
Baby monkeys endowed the cloth covered mother in
preference to the
plain mother
regardless of which
dispensed
-
-
milk This important than When it to attachment behaviour
.
suggests the contact
comfort was more
good
came .
The mother
monkeys sought comfort from the cloth lover-0A when
frightened
-
.
As adults who had deprived their real mothers severe
they
the
monkeys been
Of suffered consequences
-
, were more
less sociable and less skilled in than other
aggressive , mating monkeys .
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