PSC 1 Lecture Notes - Lecture 9: Tetrahydrocannabinol, Psychological Dependence, Depressant
PSC 001 – Lecture 9 – Consciousness Day 2
■ Alcohol
● Alcohol produces its effects by activating GABA receptors.
● Occasional vs. excessive use
● Gender differences
○ Males are more likely to abuse
● Many people drink because they believe alcohol will have a
positive effect on their emotions and behavior.
● Epetations aout alohol’s effets are learned ver earl in life,
through observation.
■ Marijuana
● Not easily categorized as a stimulant, depressant, or hallucinogen
● Produces a relaxed, contented mood and more vivid perceptions
● The psychoactive ingredient in marijuana is tetrahydrocannabinol
(THC).
■ MDMA
■ Estas MDMA has gained in popularit sine the raves of the 99s.
■ Users feel energized and may hallucinate.
■ Lowers dopamine; more serotonin activity
○ Addiction Has Physical and Psychological Aspects
■ Addiction: drug use that remains compulsive despite its negative
consequences
● Physical dependence
○ Tolerance: increasing amounts of a drug needed to
achieve the intended effect
○ Withdrawal: physiological and psychological state
characterized by feelings of anxiety, tension, and cravings
for the addictive substance
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Psc 001 lecture 9 consciousness day 2. Alcohol produces its effects by activating gaba receptors. Many people drink because they believe alcohol will have a positive effect on their emotions and behavior. E(cid:454)pe(cid:272)tations a(cid:271)out al(cid:272)ohol"s effe(cid:272)ts are learned ver(cid:455) earl(cid:455) in life, through observation. Not easily categorized as a stimulant, depressant, or hallucinogen. Produces a relaxed, contented mood and more vivid perceptions. The psychoactive ingredient in marijuana is tetrahydrocannabinol (thc). (cid:862)e(cid:272)stas(cid:455)(cid:863) (cid:894)mdma(cid:895) has gained in popularit(cid:455) sin(cid:272)e the raves of the (cid:1005)99(cid:1004)s. Addiction: drug use that remains compulsive despite its negative consequences. Tolerance: increasing amounts of a drug needed to achieve the intended effect. Withdrawal: physiological and psychological state characterized by feelings of anxiety, tension, and cravings for the addictive substance. Psychological dependence involves drug cravings without tolerance or withdrawal. Heredity may play a role (e. g. , alcoholism) Social learning (e. g. , modeling of drug use by significant others)
