Lecture 5

Question 1

Eysenck and Gray on personality

Answer 1

a single brain strucutre makes the personality

Question 2

Zuckerman and Cloninger on personality

Answer 2

neurotransmitter system makes the personality

Question 3

Eysenck on extraversion in the brain

Answer 3

determined by activation in neocortex = arousal
Ascending Reticular Activating System (brain stem)
alerts brain

Question 4

need for stimulation

Answer 4

Eysenck

introverts are more easily aroused than extraverts

Question 5

Dodson Law

Answer 5

cognitive performance and emotional well-being have an optimal arousal point

Question 6

Geen study

Answer 6

extraverts perfored worse at lower arousal level

vice versa for introverts

Question 7

voxel

Answer 7

one cubical milimeter of the brain

Question 8

Eysenck on neuroticism

Answer 8

more limbic system arousal

Question 9

BAS

Answer 9

behavioral activation system
positive emotion and reward seeking
septic area in lymbic system

Question 10

BIS

Answer 10

behavioral inhibition system
supression of behavior
negative emotions

Question 11

anxiety

Answer 11

linked to BIS

Question 12

impulsivity

Answer 12

linked to BAS

Question 13

frontal asymetry

Answer 13

more right frontal cortex activity when negative things happen

Question 14

BAS and frontal asymetry

Answer 14

higher BAS = higher frontal asymetry

Question 15

extraversion and high neuroticism

Answer 15

impulsivity disorders
addiction
antisocial behavior

Question 16

Zuckermans’s sensation-seeking scale

Answer 16

thrill and adventrure seeking scale
experience seekin
boredom susceptability
disinhibition

Question 17

low MAO

Answer 17

higher baseline dopamine

• > you need a lot of dopamine to feel reward
• > more sensation seeking

Question 18

7R

Answer 18

variant of DRD4 gene
less dopamine signalling
higher sensation seeking

Question 19

where do mutations occurs?

Answer 19

almost always in sperm cell

Question 20

directional selection

Answer 20

unfavourable genetic variation disappears

Question 21

encephalization coefficient

Answer 21

relation between brain and body size

Question 22

heterozygotic advantage

Answer 22

optimal is a combination of two extremes

-> both alleles remain in population

Question 23

intersexual selection

Answer 23

traits that attract mates

may have disadvantages for survivial

Question 24

intrasexual competition

Answer 24

flaunting assets of own sex to increase reproduction

Question 25

inclusive fitness

Answer 25

enhancing the chance of your relatives survival

Question 26

men and jealousy

Answer 26

when there’s sex

Question 27

women and jealousy

Answer 27

when man threats to leave

Question 28

stabilizing selection and personality

Answer 28

optimal personality is in the middle

Question 29

personality coevolution

Answer 29

with other traits

e.g. small people do better if they are more passive

Question 30

frequency dependent selection

Answer 30

some people can get away with being antisocial when the rest is social