Psychology - General Psychology Dependency Issues . In the DSM-IV-TR, substance-related disorders are divided into depressants (alcohol, barbiturates, and benzodiazepines), stimulants (amphetamine, cocaine, nicotine, and caffeine), opiates (heroin, codeine, and morphine), and hallucinogens (marijuana and LSD). Specific diagnoses are further categorized as substance dependence, substance abuse, substance intoxication, and substance withdrawal. Provide a brief definition of addiction, in your own…
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