addiction circuit

when stumli that leads to rewards happens dopamin and hedonic pleasure than our brain starts moving away from logic and too movements and implsutivity

representaions of what is worth while emotions, pleasure valance \

orbitofrontal cortex

• part of frontal cortex right behind eyes

• one of the important points where VTA dopamine synapses

• if frontal cortex is making desions this region is giving emotional info to that descin making process, right below desion making part of brain

• emotional valence for decsion making

• Iowa gambling task, eventually people figure out which deck is best, at the begining people are randomly guessing

• temporal discounting

• would you rather have 10 dollars now or 15 dollars later

• if this part of brain is damanged you would much rather have money now

Hippocampus

• locus of explicit, eposodic mem

  • binds many parts of experance into a single memory

  • what info gets saves as part of mem

  • inside of temporal lobe

  • HM- life without hippocampus

Gating role in mem

• DA serves as faclilataor of connection formation in the striatum

• DA also plays roles in hippocapal

Stress and emotion

• After drug wears off (Or as opponent process) mutiple regions can trigger a neg stress response

  • Amygdala

  • Hypothalmis

  • Habenula

  • Bed nucleus of stria treminalsis

  • septum

Amygdala

• fear/stress

• one of the most connected regons of brain

• 2 pathways

  • 1 slower senory processing- high road, figuring ou what is going on

  • 2 thalams to amydiula- immdedate repsonses

• also more than just fear, other emotions as well, more relibly activated by ne emotions but so does humor and sex