Personality Psychology Flashcards
(72 cards)
what is personality
= enduring, relatively broad psychological differences between people excluding cognitive abilities
person perception
= Person perception is judging other people’s personalities
stereotypes
= Stereotypes are largely made up of personality traits believed (rightly or wrongly) to be associated with social groups
Personality traits
= A trait is a consistent pattern of behaviour, thinking or feeling
- Relatively stable over time
- Relatively consistent across situations
- Varying between people
- Dispositional
big 5 traits
- Openness to experience
- Conscientiousness
- Extraversion
- Agreeableness
Neuroticism
extraversion
sociable, energetic enthusiastic, assertive
agreeableness
warm
modest
kind
helpful
trusting
conscientiousness
efficient
organised
thorough
self-controlled
neuroticism
tense
irritable
moody
nervous
high strung
openness to experience
imaginative
intelligent
original
sophisticated
3 factor model for trait psychology
extraversion
neuroticism
psychoticism
psychoticism
aggressiveness
coldness
antisocial tendencies
egocentricity
vulnerability to psychotic disorders
family studies
examines resemblance between family members as a function of genetic relatedness
BUT genetic contributions are confounded with shared environmental contributions
twin studies
= compared resemblance between mono and dizygotic twins
- environments are the same for twins so not confounding
- greater MZ resemblance implies genetic contribution
BUT twins and twin studies
can be unrepresentative
Adoptive Studies
= compare resemblance of adopted children to adoptive parents and biological parents
- Degree of resemblance to AP’s and BP’s shows environmental and genetic contributions
- BUT adoption must occur early, problems with selective placement, biological mother provides prenatal environment as well as genes
Heritability
= behavioural genetic studies yield estimates of heritability = proportion of variance in the trait accounted for by genes
- Most attributes show heritability from 0.3-0.5
- This is true for apparently learned attributes e.g. political views and vocational interests
Role of the environment
= one outcome of behavioural genetic research is the awareness of the role of the environment
- Shared environment = parental education , class, ethnicity, diet
- Nonshared environment = illnesses, friends, differential treatment by parents
Brain functioning
Systems
Eysenck’s theory
Gray’s theory
Eysenck’s theory
- Extraversion and low cortical arousal leads to desire for excitement
- Neuroticism and limbic system reactivity leads to greater autonomic NS arousal to threat and stress
Gray’s theory
- Impulsivity and ‘behavioural activation system ‘ links with sensitivity to rewards and pleasure and associated with a tendency to approach rewards
- Anxiety and behavioural inhibition systems links with sensitivity to punishment and pain and associated with a tendency to avoid punishment
Neuroticism
structures
- Associated with high resting activity of amygdala
- Greater neural response to errors in dorsal anterior cingulate cortex
Extraversion
structures
- Greater neural response to experiences of reward in frontal brain lobes
Chemicals
personality
= personality factors may be associated with neurotransmitter activity in the brain
Extraversion and dopamine
- Exploration, approach and incentive motivation