L10 - Lorenz

Question 1

Define imprinting

Answer 1

Instinct in animals to attach to the first moving they see after they’re born

Question 2

How was the study conducted?

Answer 2

Clutch of gosling eggs divided into two
One division left with natural mother
Other out in incubator and saw Lorenz as the first moving thing

Question 3

Who did the groups follow?

Answer 3

Natural mother group followed their mum

Incubator group followed Lorenz and didn’t recognise their natural mother

Question 4

Lorenz found the critical period is important, what is it?

Answer 4

Definite period in a young animal’s life where if they’re not exposed to a moving object within this time, they’ll never imprint

Question 5

How are attachment and imprinting similar?

Answer 5

Animal bonds with caregiver in a special relationship

Question 6

Long-term effects?

Answer 6

Imprinting is irreversible and long-lasting

Sexual imprinting: mate with a similar kind of object they imprinted upon

Question 7

Study that supports Lorenz (+)?

Answer 7

Chickens exposed to a rubber glove during feeding for first 2 weeks tried to mate with a rubber glove later in life - became imprinted

Question 8

Same chicken study also found what (-)?

Answer 8

Chickens tried to mate with a rubber glove but once spent time with other chickens they showed normal sexual behaviour

Question 9

Ethical issues (-)?

Answer 9

Being taken from mother may have been traumatising and it meant that goslings couldn’t learn normal behaviour