PSYB32H3 Lecture Notes - Delirium Tremens, Substance Intoxication, Binge Drinking

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From prehistoric times, humankind has used various substances in the hope of reducing physical pain or altering states of consciousness. Almost all peoples have discovered some intoxicant that affects the cns, relieving physical and mental anguish or producing euphoria. Despite the often devastating consequences of taking such substances into the body, their initial effects are usually pleasing, a factor that is perhaps the root of substance abuse. Substance dependence is characterized by dsm-iv-tr as the presence of at least 3 of the following: the person uses more of the substance or uses it for a longer time than intended. the person recognizes excessive use of the substance; he/she may have tried to reduce usage but has been unable to do so. much of the person"s time is spent in efforts to obtain the substance or recover from its effects.

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