Psych 51 - Midterm 3 - Tezler

annire's version from 2015-12-14 07:12

Section 1

Question Answer
morbidity increases during adolescence.
adolescents have heightenedreward sensitivity and lower cognitive control
the last to mature is theprefrontal cortex
what works to address rewardsventral striatum
ventral striatum developing earlier compared to prefrontal cortex..

Section 2

Question Answer
release of dopaminereward pathway
what regulates subcortical pathways? (reward pathway and emotional brain)prefrontal cortex
dopamine operant conditioningmore like to do pleasurable things again. ** very sensitive in adolescence
adolescent early development, learn how to make adjustments, give up immediate pleasures for long term goals
motivation to do risky things helps surivive?when we do risky things, and get a high, increase likelihood will do it again

Section 3

Question Answer
goal of the study: can the heightened reward response we see during risk taking be reducedand redirected to promote cognitive control?
hypothesis: parental presence --> bottom up processing. parents elicit a reward related response --> boosts adolescents' motivation to regulate their behavior. ==> increase neural coupling between ventral striatum and PFC to facilitate safe behavior during risk taking
resultsadolescents made significantly fewer risky choices when their mothers were present than when alone
higher signal intensity in PFC during stop (safe) decisions when mother present
VLPFC involved in self-control, ability to regulate and contorl one's prepotent thoughts and behaviors, causal role in goal-directed inhibitory control
mothers boost self-control by increasing PFC activation, facilitating more deliberative and safe decisions
also, higher activation in MPFC for safe and risky decisions(computing reward value of ongoing cognitive tasks), subjective value of rewards
maybe, adolsexcents are incorporating their mothers' perspective to inform their own behavior and decide whether to engage in risky decisions
****hedonic rewards from risk taking (ventral striatum)decreased when mother present. mom's take the fun out of being risky
conclusionmothers reduce the rewarding nature of engaging in risk taking. when teens make risky decisions with their mothers around, they respond to risky outcomes with decreased amygdala and ventral striatum activiation than wehn alone