Drugs - minimal – natural “braking” action •...

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1 Drugs and Drug Use Why do people take drugs? • What are the risks of drug use? • Why do you think people first take drugs? • What are the benefits of drugs? Categories of drugs • Depressants – slow down nerve impulses in CNS • Stimulants – arouse CNS • Narcotics/ opiates – create sense of well-being and relieve pain – highly addictive • Hallucinogens – create hallucinations or alter perceptions
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2 Depressants • Barbiturates – sleeping pills • Benzodiazepines – Valium, Xanax • Alcohol – 5-10% adults have problems – fetal alcohol syndrome – age 15-25: auto accidents is leading cause of death Stimulants • cocaine/ crack cocaine • amphetamines (speed) • methamphetamine • ecstasy Common Stimulants • Addictive • Augment effects of “reward” chemicals in brain • Caffeine – harmful effects are
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Unformatted text preview: minimal – natural “braking” action • Nicotine – negative impact > all other drugs combined 3 Hallucinogens • create hallucinations • alter perceptions • blur boundary between self and outside world • mescaline, psilocybin, LSD, PCP, ecstasy Marijuana • THC = active ingredient • psychologically, but not physically addictive • THC causes release of dopamine • Affects learning, thinking, and memory Narcotics/ opiates • Morphine, heroin, codeine • Very addictive • Methadone as treatment for heroin addiction • For pain relief, rarely addictive 4 Dependence and addiction • Tolerance – less and less of an effect over time • Withdrawal – uncomfortable or painful symptoms or cravings when level of drug is decreased or eliminated...
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This note was uploaded on 12/21/2010 for the course PSYCH 1A taught by Professor Kerrihogue during the Fall '10 term at Santa Rosa.

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Drugs - minimal – natural “braking” action •...

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