p1 - topic 5: bio approach Flashcards
amygdala function
involved in emotional processing
amygdala is linked to…?
neuroticism
prefrontal cortex function
executive functions
decision making
impulse control
prefrontal cortex is linked to…?
conscientiousness
what are neurotransmitters?
chemicals in the brain that facilitate communication between neurons
neurotransmitter role?
regulation various physiological and psychological functions including mood, cognition and behaviour
what happens when neurotransmitters fluctuate?
influence certain aspects of personality
norepinephrine
involved in body’s stress response and regulates arousal, attention and mood
GABA
gamma-aminobutyric acid
primary inhibitory neurotransmitters in brain, involved in reducing neuronal excitability
hormones
chemical messengers produced by various glands in body that regulate numerous physiological processes including growth, metabolism, reproduction and mood
cortisol
stress hormone, released in response to stresses and help regulate body’s stress response
eysenck’s view on personality and brain functions
extraversion and introversion were dimensions of personality infleunced by difference in cortical arousal
gray - two systems underlying personality difference
approach: sensitive to incentives, things we desire –> reaction to reward and anticipation of reward accompanied by positive emotions (behavioural activation systems)
avoidance: sensitive to threat and things we’re afraid of –> signs of punishment, threat accompanied by negative feelings and anxiety (behavioural inhibition system)
key features of behavioural activation system (BAS)
reward sensitivity
positive emotionality
approach orientation
impulsivity
goal-directed behaviour
features of behavioural inhibition system (BIS)
punishment sensitivity
avoidance behaviour
anxiety and vigilance
decision making –> uncertainty
