Animal Models & The Brain
Animal Models & Hormones
Ethics & Limitations
General Psych
100

Weiskrantz studied the function of which part of the brain?

The amygdala.

100

Free points!

100

Animal studies might not be able to be applied to humans. This is an issue of ......bility?

Generalizability

100

True or False? You will definitely have an exam question about animal studies in your IB exam.

False

One, two or all three of the Paper 1, Section B questions will be based on the extensions. 

For more info, check out this video... (from 6:38-> https://www.youtube.com/watch?v=0a3B5CCzPqM&t=

200

Weiskrantz's study suggested that the amygdala has a function in what behaviour?

Emotion

Fear

(Either is an acceptable answer)

200

What were the two conditions in Sapolsky's study?

Cortisol pellet in the hippocampus

or,

Cholesterol pellet in the hippocampus

200

What are two ethical considerations relevant to using animals in experimentation?

1) Justification

2) Animal welfare

200

How many essay questions will be based on the extensions in Paper 1?

One, two or all three.

300

Sapolsky's study shows that cortisol may affect the...

...hippocampus.

300

What were three findings from Albert et al.'s study?

- Castration reduced aggression in alpha males

- Replacing testosterone restored aggression

- Castrated alphas lost their alpha position

300

What's it called when animals are humanely killed to put an end to their suffering?

Euthanizing

300

The ability to maintain and manipulate information in our conscious attention is called...

...working memory.

400

What were three ways the enriched cage differed from the deprived cage in Rosenzweig and Bennett's experiment?

Maze training

Other rats in the cage

Toys to play with

400

Sapolsky's study could provide insight into what  possible finding in human studies? 

Name one of those human studies. 

A) People who have experienced chronic stress (e.g. people with PTSD or those growing up in poverty) have smaller hippocampi. 

Luby et al. is one study. 

Bremner et al. is another (pg. 227 of student's guide)

(Gilbertson's is not an example because this shows small hippocampis is genetic, not environmental).

400

What are the two major strengths of using animal models to understand human behaviour?

1) Variables can be manipulated in a way that would be ethically or practically impossible to do on humans (e.g. brain lesioning)

2) Researchers can conduct tightly controlled experiments to draw cause-effect relationships (e.g. keeping living environments consistent in studies on the effects of brain damage).

400

Who is considered "the grandfather of psychology?"

(or the "father of psychology"?)

Wilhelm Wundt - he opened the Institute for Experimental Psychology at the University of Leipzig in Germany in 1879. 

500

What were three specific findings from Rosenzweig and Bennett's experiments regarding synapses, receptors and % brain weight growth?

Synapses increased 20%

More acetylcholine receptors

Brain increased in weight 7-10%

500

What were the four conditions in Albert et al.'s study?

A. Castration 

B. Castration followed by implanting of tubes with testosterone 

C. Castration followed by implanting of empty tubes 

D. A “sham” castration followed by implanting of empty tubes

500

What are two reasons why findings in animal studies on aggression might not generalize to humans?

Culture: we have more sophisticated cultures that teach us values, that in turn influence our thinking and decision making in situations involving aggression.

Cognition: we have more sophisticated thought processes that allow us to inhibit our biological impulses.

Both of the above mean that a simple change in biology isn't guaranteed to change our behaviour as they can be moderators of the relationship between biology and behaviour.

500

What is the name of Mr Dixon's daughter?

Aya

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