Drugs and alcohol 2

  1. what is a disorder
    a disorder of structure or function inĀ  a human, animal, or plant, especially one that produces specific signs or symptom
  2. what is the strongest predictor of substance abuse
    family genetic history
  3. old brain
    • survival: cravings for food, sex, sleep, etc.
    • act: fight or flight
  4. new brain
    • executive functions, reasons, creativity
    • applies capacities to meet survival needs in planned, adaptive ways
  5. what happens when survival is at play
    the old brain can override the new brain
  6. what part of the brain contains the reward/pleasure center
    the limbic system
  7. Go! system
    • old brain sends off these impulses
    • rewards things needed for survival:
    • drug use (more dopamine)
  8. Stop! system
    • shuts down go system when situation is rectified or deed is met
    • stops system is in the prefrontal cortex
  9. how do drugs alter the stop go system
    with drugs the Go signal responds so strongly that it can disable to stop signal (prefrontal cortex)
  10. Function of the biggest region of the "brain"
    executive functioning (stop)
  11. function of the middle portion of the "brain"
    emotional processing and memory formation
  12. function of the smaller/lower part of the "brain"
    basic life functions
  13. The limbic reward system
    just remember this
  14. endogenous vs. exogenous
    made inside the body vs. outside the body
  15. origin of neurotransmitters
    • enodgenous- dopamine, norepinephrine, serotonin, GABA, and others
    • exogenous- false neuros that come from outside the body
  16. GABA
    endogenous neuro that is inhibitory and slows down nervous processes
  17. nucleus accumbens
    • middle brain
    • plays role in processing motivation, pleasure, reward, and reinforcement learning
  18. anterior cingulate cortex
    • middle/top brain
    • involved in rational cognitive function
    • reward anticipation, decision-making, empathy, impulse control, emotion
  19. amygdalae
    • part of limbic system
    • plays role in formation and storage of emotional learning, decision making, and fear response
  20. VTA
    • in the lower brain
    • ventral tegmental area
    • origin of dopaminergic cell bodies
  21. function of the prefrontal cortex in relation to impulses
    • it catches all the impulses
    • delay of gratification
  22. what parts of the brain are majorly affected by substance abuse
    prefrontal cortex, nucleus accumbens, VTA, anterior cingulate cortex, amygdala
  23. how can we measure blood in the brain
    • single photon emission computed tomography
    • SPECT
Card Set
Drugs and alcohol 2
neuro section of Soc. 453