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March 31-drugs.pdf

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Mind-altering and psychoactive plants Affect performance of brain and central and peripheral nervous system by influencing signal transduction in neurons At low concentrations compounds may be mind-altering or stimulating; same compounds may be deadly poisons at higher concentrations Mind-altering and psychoactive plants Classification based on plant’s effects: ã Stimulants: alert and stimulate the mind or activity without changing perception ã Sedatives, hypnotics or narcotics: sedat
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  Mind-altering and psychoactive plants  Affect performance of brain and central and peripheral nervous system by influencing signal transduction in neurons  At low concentrations compounds may be mind-altering or stimulating; same compounds may be deadly poisons at higher concentrations  Mind-altering and psychoactive plants Classification based on plant’s effects:  ã   Stimulants:  alert and stimulate the mind or activity without   changing perception ã   Sedatives, hypnotics or narcotics : sedating, sleep-inducing, or narcotic properties that can change perception and cause vivid dreams, euphoria ã   Opium poppy ( Papaver somniferum ; Papaveraceae) ã   Valerian ( Valeriana officinalis;  Valerianaceae) ã   Hops ( Humulus lupulus ; Cannabaceae) ã   Kava Kava ( Piper methysticum ; Piperaceae)  Hallucinogens : plants with substantial influence on perception of space, time, & emotions. Illusions appear real. Used for centuries by shamans, witches in magic and in spiritual/healing rituals.  Approximately 16 important hallucinogenic plants. Mind-altering and psychoactive plants  Hallucinogens : plants with substantial influence on perception of space, time, & emotions. Illusions appear real. ã   Wormwood (  Artemesia absinthium;  Asteraceae) Mind-altering and psychoactive plants ã    Absinthin, thujone ã   Used for pest control and abortion ã   Essential oil was main ingredient in absinthe, but banned from the liqueur in early 20th century ã   Vincent van Gogh was addicted to absinthe
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