Animal Studies Review - Bio Extension HL IB Psych

In Weiskrantz study, they lesioned the amygdala in one group. What did they lesion in the other group of monkeys?

• Nothing

• The PFC

• The hippocampus

• A different area of the temporal lobe

What was the primary finding from lesioning the amygdala in Weiskrantz's study?

• The monkeys became aggressive.

• The monkeys showed a lack of fear and became tame.

• The monkeys' memory was decreased.

• The monkeys died.

A human study that shows similar conclusions to Weiskrantz study is....

• HM's case study by Milner and Scoville

• KF's case study

• SM's case study by Feinstein et al.

• Luby et al.'s study on poverty and the brain

How long did Rosenzweig and Bennett keep their rats in different cages before they were euthanized?

• 2-3 weeks

• 30-60 days

• 1-2 years

• 6 months

Which of the following was NOT in the enriched cage condition in Rosenzweig and Bennett's study?

• They received maze training

• They had a range of toys to play with

• They had other rats in the cage with them

• They had sugar in their water and their food

What happened to the brains of Rosenzweig and Bennett's rats?

• They had more acetylcholine receptors

• Brain weight increased 7-10%

• Synapses increase 20%

• All of these options

Which of the following was NOT a condition in Albert et al,'s study.

• Sham castration

• Castration with testosterone tubes inserted later

• Castration with empty tubes re-inserted

• Castration with amygdala lesioning

• Castration

What happened to the alpha status of the castrated male rats in Albert et al.'s study?

• They maintained their alpha status

• They lost their position and submissive males become alphas

• Neither

True or false...increasing testosterone through tubes AFTER castration decreased aggression in the castrated alpha male rats in Albert et al's study.

• True

• False (aggression was increased after testosterone replacement)

• False (there was no change)

How old does a rat or mouse have to be before it can reproduce?

• About two weeks old

• About two months old

• About two years old

• About two days old