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Psychoactive Drugs


Jack Yan

on 12 February 2010

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Transcript of Psychoactive Drugs

Psychoactive Drug What is a Psychoactive Drug? It is a chemical substance acts upon central nervous systems Alter Brain Function Changes mood behavior consciousness Have negative effects Anesthesia Examples LSD cannabis Stimulants are psychoactive drugs which induce temporary improvements in mental or physical function Caffeine
Amphetamines MDMA ("Ecstasy") Cocaine Such as Why is it Addictive?
it stimulates the brain's dopaminergic reward system The pleasurable activity can lead to psychological addiction. it directly stimulate the dopaminergic system CAUSE EXTREME ADDICTION Effects of Stimulants enhances alertness awareness endurance productivity motivation increases movement heart rate blood pressure and diminishes the requirement of food and sleep Depressants temporarily diminish the function or activity of a specific part of the body or mind effects anxiolysis (lowering anxiety) memory impairment muscle relaxation lowered heart rate/blood pressure Types of Depressants alcoholic beverages antihistamines antipsychotics beta blockers muscle relaxants a drug that treats allegies treats psychosis treats heart problems THE END
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