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substance_related_disorders-post - Substance-Related...

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Substance-Related Disorders Substance-Related Disorders Dr. Nolan Zane Dr. Nolan Zane
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Substance-related disorders: When the use of psychoactive drugs causes social, occupational, or physical problems. Use of legal or illegal psychoactive substances that directly affect the central nervous system (CNS) to alter physical and psychological states. Substance use disorders involve dependence and/or abuse of a particular drug.
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Substance-Related Disorders Substance abuse : Maladaptive pattern of recurrent use that Extends over a period of 12 months Leads to notable impairment or distress Continues despite social, occupational, psychological, physical or safety problems
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Substance-Related Disorders (cont’d) Substance dependence : Maladaptive pattern of use over 12- month period, characterized by: Unsuccessful efforts to control use, despite knowledge of harmful effects Takes more of substance than intended Devotes considerable time to activities necessary to obtain the substance
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Substance-Related Disorders (cont’d) Tolerance : Increasing doses are necessary to achieve desired effect Withdrawal : Distress/impairment in social, occupational, other areas of functioning or physical or emotional symptoms (e.g., shaking, irritability, inability to concentrate) after reducing or ceasing intake Tolerance or withdrawal indicates physiological dependence.
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Depressants or sedatives: Substances depress central nervous system and slow a person’s responses, increase relaxation, lower inhibitions and anxiety. Alcohol-use disorders – 2 types Need to use alcohol daily to function Person can abstain but cannot moderate or control intake once begins drinking or binges when he or she drinks. Alcohol consumption in the United States 50 percent of alcohol consumed by 10 percent of drinkers; males drink two to five times more than females. Other subtypes of alcoholics – externalizers vs. internalizers; women tend to be more internalizers and men, more externalizers.
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Effects of alcohol Short-term physiological effects – Blood Alcohol Level (BAL) of 0.1: muscular coordination and speech impaired; 0.5: lose consciousness or die.
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