Drugs Module 26. Classifying Drugs Psychoactive drug. –Substance capable of influencing...
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Transcript of Drugs Module 26. Classifying Drugs Psychoactive drug. –Substance capable of influencing...
![Page 1: Drugs Module 26. Classifying Drugs Psychoactive drug. –Substance capable of influencing perception, mood, cognition, or behavior. Types. –Stimulants speed.](https://reader035.fdocuments.in/reader035/viewer/2022081421/56649ec65503460f94bd27f1/html5/thumbnails/1.jpg)
Drugs
Module 26
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Classifying Drugs• Psychoactive drug.
– Substance capable of influencing perception, mood, cognition, or behavior.
• Types.– Stimulants
• speed up activity in the CNS.
– Depressants • slow down activity in the CNS.
– Opiates • relieve pain.
– Psychedelic drugs • disrupt normal thought processes.
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Psychoactive Drug
• Chemical substance that alters perceptions, mood, or behavior
• Three common psychoactive drugs:
– Caffeine
– Alcohol
– Nicotine
• Induce an altered state of consciousness
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Dependence
• State of physiological, psychological or both types of need to take more of a drug after continued use.
• Withdrawal follows if the drug is discontinued
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Withdrawal
• Discomfort and distress that follow when a person who is dependent on a drug discontinues the use of that drug
• Withdrawal symptoms are usually the reverse of the drug’s effects.
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Tolerance
• Reduced responsiveness to a drug, prompting the user to larger dosages to achieve the same pleasurable effects previously obtained by lower doses
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Tolerance
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Alcohol:A Depressant
Module 26: Drugs
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Depressants
• Drugs that reduce neural activity and slow body functioning
• Includes alcohol and sedatives
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Alcohol (ethyl alcohol)
• Found in beer, wine, and liquor
• The second most used psychoactive drug (caffeine first)
• Slows thinking, and impairs physical activity
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Blood Alcohol Content (BAC)
• A measure of how much alcohol is in a person’s bloodstream
• BAC of .8 considered legal intoxication in most states
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Euphoric Affects of Alcohol
• Alcohol impairs the parts of the brain responsible for controlling inhibitions and making judgments
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Alcohol, Memory, and Sleep
• Studies have shown that alcohol impairs memory by suppressing the processing of events into long term memory.
• Alcohol impairs REM sleep, further disrupting memory storage.
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Alcoholism
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Stimulants
Module 26: Drugs
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Stimulants
• Drugs that excite neural activity and speed up body functions
• Include: caffeine, nicotine, amphetamines, and cocaine
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Caffeine• Stimulant found in coffee,
chocolate, tea, and some soft drinks
• Provides user with a sense of increased energy, mental alertness, and forced wakefulness
• Blocks neurological receptor sites that, if activated, sedate the central nervous system
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Nicotine
• Stimulant found in tobacco
• Effects similar to those of caffeine
• Very addictive and does not stay in the body very long
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Cocaine
• Stimulant derived from leaves of the coca plant
• Crack – cocaine crystals
• Blocks the reuptake of certain neurotransmitters
• Dependency is quick and severe; places extreme strain on cardiovascular system
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Amphetamines
• Drugs that stimulate neural activity, speeding up body functions
• Include increased energy and mood changes
• Includes: speed, uppers, and methamphetamines
• Mimic adrenaline• Can cause irreversible changes in mood
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Hallucinogens
Module 26: Drugs
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Hallucinogens
• Psychedelic drugs that distort perceptions and evoke sensory images in the absence of sensory input
• Include: LSD and ecstasy
• Sometimes called “psychedelics” meaning mind-manifesting
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Lysergic Acid Diethylamide (LSD)
• Powerful hallucinogenic drug
• Also known as “acid”
• The effects vary from person to person
• Users can be dangerous to themselves and others.
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Ecstasy
• Hallucinogenic drug that produces lower inhibitions, pleasant feelings, and greater acceptance of others
• Also called MDMA
• Even moderate users may experience permanent brain damage.
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Marijuana
Module 26: Drugs
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Marijuana
• Leaves, stems, resin, and flowers form the hemp plant that, when smoked, lower inhibitions and produce feelings of relaxation and mild euphoria
• THC (delta-9-tetrahydrocannabinol) is the active ingredient
• Disrupts memory; lung damage from smoke
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Prevention
Module 26: Drugs
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A Guide to Selected Psychoactive Drugs
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High School Drug Use