Animals in Lab experiments

Question 1

When are animals chosen to be used in experiments?

Answer 1

When it would be unethical to do on humans

Question 2

1 example of an unethical experiment that would need to be done on animals?

Answer 2

administering a drug to see the effect on behaviour with maximum control over all the variables as animals can have their lives completely controlled
-also you can breed genetically similar animals to remove the chances of individual differences effecting the results

Question 3

What happened in Pfeiffer?

Answer 3

• implanted gonads into newborn rats

- Male gonads into female rats caused release of male sex hormones showing reversed sexual behaviour

Question 4

What did Pfeiffer conclude?

Answer 4

That hormones effect brain structure which consequently effects behaviour

Question 5

where was the study of Castner carried out?

Answer 5

Yale uni

Question 6

what happened in Castner?

Answer 6

• Monkeys developed schizophrenia like symptoms due to selective brain damage caused by x-rays done during early weeks of foetel development
• Monkeys were tested fine while growing up but developed these symptoms in puberty