PSYC414 Lecture Notes - Lecture 1: Sigmund Freud, Nibble, Substance Abuse
14 Feb 2018
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External substances taken into the body that effect chemicals in the body. Affects neurotransmitter, enzymes, receptors, etc. and their functioning. Non-psychoactive drugs are stopped at the blood-(cid:271)rai(cid:374) (cid:271)arrier, so it does(cid:374)"t go to the brain. Excluding nutrients that have to do with the normal functioning of the body (food) Psychoactive drugs affect feelings, thoughts, perceptions, and behaviors. Illi(cid:272)it drugs = illegal drugs (cid:894)does(cid:374)"t (cid:374)e(cid:272)essarily (cid:373)ea(cid:374) they"re har(cid:373)ful(cid:895) Drugs have been around even in prehistoric times (i. e. , vikings, american indians, Some animals (i. e. , elephants, chimpanzees, baboons) prefer water containing small amounts of alcohol over water; birds prefer fermented berries; goats nibble on coffee berries; llamas chew cocoa leaves; ants like beetle secretions. 1900s: prescription for narcotics (i. e. , heroine, morphine, 1920- prohibition, 60s- people loved drugs, 80s- stimulants, 90s- heroine, 2000s-now- heroine and similar drugs, predict future- stimulant increase; goes in a cycle.
