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Drugs and Altered States of Consciousness

Drugs and Altered States of Consciousness - – Loss of...

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Drugs and Altered States of Consciousness Psychoactive Drug: Substance capable of altering attention, judgment, memory, time sense, self-control, emotion, or perception Stimulant: Substance that increases activity in body and nervous system Depressant: Substance that decreases activity in body and nervous system Dependence Physical Dependence: Addiction based on drug tolerance and withdrawal symptoms Drug Tolerance: Reduction in body’s response to a drug Withdrawal Symptoms: Physical illness following withdrawal of the drug Psychological Dependence: Drug dependence based on psychological or emotional needs Stimulants Amphetamine: Synthetic stimulants that excite nervous system Dexedrine and Methamphetamine are two types of stimulants Amphetamine Psychosis:
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Unformatted text preview: – Loss of contact with reality because of amphetamine use – User tends to have paranoid delusions Cocaine • Central Nervous System stimulant derived from leaves of coca plant; also used as local anesthetic – From 1886-1906, Coca-Cola did indeed have cocaine in it! – Highly addictive drug – Increases dopamine and noradrenaline – Anhedonia (Inability to Feel Pleasure): • Common after cocaine withdrawal MDMA (Ecstasy) • Methylenedioxymethamphetamine • Chemically similar to amphetamine • Causes brain to release extra serotonin • Created by small variations in a drug’s structure – May cause severe liver damage and fatal heat exhaustion – Repeated use damages serotonergic brain cells, increases anxiety and depression, and leads to memory impairment...
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