Animal research Flashcards

1
Q

Harlow

A

He reared (raised) 16 baby monkeys with 2 wire models
In one condition milk was dispensed by the plain wire mother
In a second condition milk was dispensed by the cloth covered mother.

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2
Q

Harlow results

A
  • Harlow concluded that a mother figure had to be introduced to an infant monkey within 90 days for an attachment to form
  • After this time, attachment was impossible and the damage done from this deprivation was irreparable
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3
Q

Lorenz

A

Half of the eggs were hatched with the mother in their natural environment and the other half were hatched in an incubator where Lorenz was the first thing they saw

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4
Q

Lorenz findings

A
  • Lorenz identified a critical period in which imprinting needs to take place and it depends on the species but it could be as brief as a few hours after hatching.
  • If imprinting doesn’t occur within that time, Lorenz found that chicks didn’t attach themselves to the first thing they saw.
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5
Q

sexual imprinting study

A
  • Case study (1952): peacock reared in reptile house, the first moving object it saw was a giant tortoise, as an adult it would only direct courtship towards giant tortoises. Peacocks had undergone sexual imprinting
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6
Q

Guiton

A
  • Found that chickens imprinted on yellow gloves would then try and mate with them when they were adults as Lorenz predicted.
  • However, with experience the chicken learnt to mate with other chickens.
  • So the impact of imprinting on mating behavior is not as permanent as Lorenz’s conclusions.
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