PSYB32H3 Chapter : PSYB32 Ch 12

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25 Dec 2011
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Substance dependence, dsm states the presence of @ least 3 of the following: > the person dvlps tolerance, indicated by either (a) larger doses of the substance being needed to produce the desired effect or (b) the effects of the drug becoming less if the usual amount is taken. > withdrawal symptoms negative physical and psychological effects dvlp when the person stops taking the substance or reduce the amount. > the person uses more of the substance or uses it for longer time than intended. > the person recognizes excessive of the substance; they may have tried to reduce usage but has been unable to. > much of the person s time is spent in efforts to obtain the substance or recover f/ its effects. > substance use continues despite psychological/physical problems caused/exacerbated by the drugs. > the person gives up or cuts back participation in many activities (work, socialization) b/c of the substance.

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