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UA - PSYCH 101 - Class Notes - Week 4

Created by: Ashley Bartolomeo Elite Notetaker

UA - PSYCH 101 - Class Notes - Week 4

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background image Drugs and Alcohol Drugs Affect Neurotransmission Imitate, stimulate or block neurotransmitters Produce more or less neurotransmitters 1. Increase number of action potentials
2. Release neurotransmitters from vesicles with or without an 
action potential 3. Block reuptake or block receptors
4. Prevent vesicles from releasing the neurotransmitter
Alcohol Inhibits the effects of glutamate in the cerebellum (balance) Prevents dopamine from breaking down in the nucleus 
accumbens, which is in basal ganglia
Increases levels of norepinephrine Alcohol binds to GABA receptors causing the cell to 
hyperpolarize (not fire)
Decreased activity in the prefrontal cortex (judgment) and 
hippocampus (memory)
Increases dopamine levels which are used for reward and 
motivation say drinking is rewarding which in turn makes you
want to do it again
Alcohol depresses brain activity Marijuana THC increases dopamine THC encourages cannabinoid receptors to mimic other 
neurotransmitters in the limbic system, cerebellum and 
basal ganglia
o Decreases acetylcholine in hippocampus
o Decreasing action of other neurotransmitters in those 
areas Rohypnol (A Benzodiazepine) Trade name for flunitrazepam (aka “date rape drug” or 

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School: University of Alabama - Tuscaloosa
Department: Psychology
Course: Intro to Psychology
Professor: Tba
Term: Fall 2016
Tags: Psychology
Name: PY 101, week 3
Description: notes on drugs and alcohol
Uploaded: 08/31/2016
2 Pages 15 Views 12 Unlocks
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