PSYCH 380 Lecture Notes - Lecture 13: Central Nervous System, Lorazepam, Barbiturate
15 May 2016
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Document Summary
Tolerance: adjustment the brain and body make to the regular use of certain drugs so that larger doses are needed to achieve earlier effects. Withdrawal: unpleasant, sometimes dangerous reactions that may occur when people who use a drug regularly stop taking or reduce their dosage. Depressants slow/depress the activity of the central nervous system. Interfere with judgment, motor activity, and concentration. Used first half of 20th century to relieve anxiety and insomnia. Narcotics are smoked, inhaled, injected under skin (skin popped) or injected into bloodstream (mainlined) 2% of those dependant on heroin die. Increases blood pressure, heart rate, and alertness. Regular use leads to dangerous pattern that affects daily functions and social relationships. 5% of people over 11 have cocaine abuse/dependence. 6% of people over 11 have used at least once. Poor function in social relationships and work. 80% of world"s pop consumes it daily. Produces release of dopamine, serotonin, and norepinephrine in brain.
