Brain Areas

Question 1

What are the 4 lobes of the brain

Answer 1

Frontal lobe, occipital lobe, parietal lobe, temporal lobe.

Question 2

What is the role of the PFC

Answer 2

Decision making, problem solving, planning, personality, expression, emotional responses, social inhibitions

Question 3

PFC case study

Answer 3

Phineas gage
Had a pole shoot up through his head
Before the accident was a responsible, intelligent, socially well adapted, religious individual
After the accident he became impulsive, abundant, irrelevant, had obscene language and offended many so much so that he lost his job.
Proves pfc affects emotion

Question 4

What is the role of the amygdala

Answer 4

Perception of emotion, right is for fight left is for flight, size is correlated to increased aggression and physical behaviour, can help store memories so an individual can recognise similar events in the future.

Question 5

Raine at al

Answer 5

Compared murderers and non murderers brains
NGRIs has higher glucose metabolism in the right amygdala then the left
Shows amygdala governs expression of emotion but also learning memory and attention
Abnormalities in the amygdala may mean failure to learn from behaviour displayed

Question 6

Bear

Answer 6

Destruction of amygdala results in lack of fear and in a man autonomic arousal

Question 7

What is the role of the hypothalamus

Answer 7

Responsible for production of body’s essential hormones. The hormones from the hypothalamus help govern physiological functions such as temp regulation, thirst, hunger, sleep, mood, sex drive etc…

Question 8

Alpers

Answer 8

A well liked well mannered lawyer who had a tumor on is hypothalamus. He began to display uncharacteristic outbursts of aggression and behaviours that were shocking to people that knew him. The tumor was said to be the cause of the violence

Question 9

Charles Whitman

Answer 9

Went to a university in Texas after killing his mother and wife and began a mass shooting killing 14 and wounding 31. He was eventually taken down by police and it was discovered he had a pecan size tumour on his head. The argument of wether it was the tumour or the abusive childhood he had still goes on today

Question 10

What is serotonin

Answer 10

A NT that has an important role in decision making by inhibiting aggressive responses. Reduces aggression by preventing stimulation of the amygdala

Question 11

Mann eat al

Answer 11

Administered drug which reduces serotonin levels
Them given a questionnaire to assess hostility and aggression
Both were raised in males but not females
Suggests males have an additional hormone causing aggression

Question 12

Antidepressants

Answer 12

These raise serotonin levels which reduces aggression

Question 13

Popova et al

Answer 13

Dogs that have been selectively bred for domestication have increased serotonin

Question 14

What is the role of Dopamine

Answer 14

Feelings of pleasure, satisfaction and motivation, has a role to play in controlling the reward centre

Question 15

Amphetamine studies

Answer 15

Drug increases level of DA

Question 16

Antipsychotics

Answer 16

Drug reduces DA in the brain. Antipsychotics reduce the chance of aggression.

Question 17

Gender bias

Answer 17

Link between low levels of serotonin and aggression in males but not in females. Suggests seretonin acts different in males and females.

Question 18

What are hormones