Week 3 extraversion and neuroticism pt2

Main psychological mechanism in extraversion?

responsiveness of midbrain (dopamine) reward systems

Main psychological mechanism in neuroticism?

responsiveness of negative affect/ distress system

What are the reward pathways?

mesolimbic pathway

mesocortical pathway

What is the mesolimbic pathway?

D from VTA to nucleus accumbens

What is the mesocortical pathway?

D from VTA to PFC

Anticipated monetary losses, the right anterior insula correlates with the trait of what?

neuroticism/ negative arousal

Anticipated monetary losses, the right anterior insula DOES NOT correlate with the trait of what?

extraversion/ positive arousal

Eysenck’s theory of neuroticism suggests N is determined by what?

interaction between ARAS and the limbic system

Explain the case study of Patient S.M. (the woman with no fear)

complete bilateral amygdala destruction since late childhood

Positive and negative affect schedule (PANAS-SF)

survey where rank how often carry out behaviours/ emotions

What are the 5 traits in Zuckerman’s alternative to the five factor model?

sociability (agreeableness - FFM)

neuroticism-anxiety (neuroticism - FFM)

impulsive sensation seeking (openness to experience - FFM)

aggression-hostility (Eysenck’s psychoticism)

activity (extraversion - FFM)

IAT (Implicit Associations Test)

measures the strength of associations between concepts (e.g., black people, gay people) and evaluations (e.g., good, bad) or stereotypes (e.g., athletic, clumsy).

The main idea is that making a response is easier when closely related items share the same response key