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UA - PSYCH 101 - Class Notes - PY 101, Week 2 Notes

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UA - PSYCH 101 - Class Notes - PY 101, Week 2 Notes

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background image 8/29 Drugs and Alcohol Drugs affect neurotransmission Imitate, stimulate, or block neurotransmitters Will provide more or less neurotransmitters -Increase number of action potentials
-Release neurotransmitters from vesicles with or 
without an action potential
-Block reuptake or block receptors
Prevent vesicles from releasing the neurotransmitters
It can be left in the synapse Changes up chemicals of the body and changes up 
communication
Alcohol Increases dopamine, decreases everything else (balance, 
speech, brain activity, etc.)
Inhibits the effects of glutamate (means excitatory) in the 
cerebellum (part of the brain for balancing), cutting off 
communication. (Aka throws off coordination)
Prevents dopamine (happiness and reward) from breaking 
down in the nucleus accumbens
-Dopamine isn’t being broken down; you feel 
good/confident
Increases levels of norepinephrine (arousal) -You do stuff you wouldn’t usually do sexually Alcohol binds to GABA receptors causing the cell to 
hyperpolarize (less firing)
-Body is calming down; slurred words; when GABA kicks
in, the cells don’t communicate
Decreased activity in the prefrontal cortex and 
hippocampus
-You won’t remember the night/things; judgement is 
impaired
Marijuana THC increases dopamine

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School: University of Alabama - Tuscaloosa
Department: Psychology
Course: Intro to Psychology
Professor: Tba
Term: Fall 2016
Tags:
Name: PY 101, Week 2 Notes
Description: Drugs and Alcohol
Uploaded: 09/03/2016
2 Pages 18 Views 14 Unlocks
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