final study guide Flashcards
what are the regions of the prefrontal cortex and what are their functions?
- dorsolateral
understanding rationale behind others - ventrolateral
understanding one’s feelings and others (theory of mind) - medial
understanding oneself - orbitofrontal
memory, learning, rewards and habits, decision-making
what is the limbic system? what parts make it up? what do they do?
limbic: emotion center
amygdala
fear, anger, anxiety
anterior cingulate cortex
attention
hypothalamus
reward center: dopamine, maintains homeostasis
hippocampus
memory/learning
what is the insula?
insulates emotions in response to bodily reactions (for homeostasis)
- insulates pain
what is the dorsal striatum?
long term habits & decision-making
- smoking (addicts) (doesn’t bring pleasure anymore)
- brushing teeth
- morning routines
- breathing
what are nucleus accumbens?
rewards, pleasure, motivation, immediate gratification
- food
- sex
- completing hw
what is the ventral tegmental area (VTA)?
located in midbrain
where dopamine is created
involved in reward, motivation, pleasure -> sends info to nucleus accumbens
what is the temporo-parietal junction?
incorporating emotions (limbic system) and senses (external stimuli) to process environment
- theory of mind
- interpreting facial expressions
what are 5 chemicals and their functions?
dopamine
reward, motivation,
pleasure
oxytocin: love hormone
trust, connectedness,
stress reliever
endorphins: runner’s high
pleasure, pain reliever
cortisol: stress
fight/flight response, regulating BP and glucose levels, fluctuates during the day
sex hormones: sex drive
testosterone: males
estrogen: females
what is body-image?
one’s perception of their own body in regards to feelings
tripartite influence
peers, parents, media
what are the two factors that lead to negative body-image?
internalization of the thin ideal and social comparison
what is interoceptive awareness?
one’s ability to sense and interpret signals from the body
- measuring one’s heartbeat
- feeling hot/cold
what are some things that activate the nucleus accumbens?
- rewards
- learning
- anticipation
- pride
- shame
- positive social feedback
- avoiding criticism
what is body dysmorphic disorder?
when one has a distorted perception of one’s body
what do social species thrive on?
relationships because it is rewarding
what is the social rejection and cyberball study and what did it show?
- fMRI scan while people simulated a game of catch
- eventually stopped passing it to the person
- activated ACC (attention to one’s mistakes)
- dorsomedial PFC (rationalizing one’s mistakes)
difference between lust, attraction, and love?
lust
nucleus accumbens, amygdala, hypothalamus
attraction
nucleus accumbens
love
oxytocin, VTA, caudate nucleus (rewards), temporo-parietal junction, thalamus (senses), anterior cingulate
what shapes our brain circuitry?
genetics and early childhood experiences
types of childhood attachment?
secure
anxious-resistant
uncomfy with mom gone but hesitant to accept help
anxious-avoidant
uncomfy with mom gone but doesn’t go back to mom for comfort
disorganized
doesn’t feel discomfort when mom is present or gone
types of adult attachment?
secure
anxious-preoccupied
craves relationships and is scared of being alone
fearful-avoidant
craves relationships, but afraid of being hurt so distanced
dismissive-avoidant
doesn’t want to depend on others
what is the theory of mind?
the ability to attribute mental states (beliefs, intentions) to oneself and others
regulated by medial PFC, dorsomedial PFC, temporo-parietal junction
what is the mirror neuron system?
allows us imitate others
- learning/memory
what did the social laughter vs real laughter study find?
social laughter: activates ACC (attention) and dmPFC (rationale to one’s own mistakes)
what did the effective communication study find? (synchronization)
- synchronization in brains between reader and listener
some regions in listener lagged behind the speaker
- insula (feelings), parietal regions (senses), nucleus accumbens (rewards)
- speaker already knows what happens
some regions in listener preceded speaker
- mPFC (attention), orbitofrontal (reward and emotion), DLPFC (decision-making), nucleus accumbens (rewards)
- listener is anticipating motives of characters