PSY 223 Lecture : Chapter 7 - Substance Abuse & Dependence
Document Summary
The dsm uses two major categories of substance-related disorders: substance use disorders: patterns of maladaptive behaviour involving the use of a psychoactive substance. Substance-use disorders include substance-abuse disorders and substance dependence disorders: substance-induced disorders: disorders induced by the use of psychoactive substances, including intoxication, withdrawal syndromes, mood disorders, delirium, and amnesia. Substance abuse: continued use of a psychoactive drug despite the knowledge that it is causing or contributing to a persistent/recurrent social, occupational, psychological, or physical problem. Substance dependence: impaired control over the use of a psychoactive drug and continued or even increased use despite the awareness that the substance is disrupting one"s life. Hallmarks of substance abuse & dependence: tolerance-with frequent use, higher dosages are needed to achieve the same effect, withdrawal syndrome-symptoms occur when the person abruptly stops taking the drug, tachycardia-abnormally rapid heartbeat, delirium tremens- dt s, delirium, disorientation.
