Lecture+16+Addiction+5-28-10

Lecture+16+Addiction+5-28-10 - repeated drug use •...

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What is Addiction? Addiction is: A chronic progressive relapsing disease. Compulsive drug use regardless of the detrimental effects of the behavior on various aspects of health and life Addiction is a disease of the young.
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How Far-Reaching is Drug Abuse?
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Continuum of Drug Use
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Pattern of Herion Use in 10 Individuals Over a 20 Year Period
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Addiction and Other Chronic Diseases
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Risk Factors for Drug Addiction
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Opponent-Process (extended)
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Opponent-Process (more)
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Opponent-Process Model
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Opponent-Process Model Strengths: Also implies underlying neural changes to account for long-term affects of drug Does a good job of explaining the dysphoria of both withdrawal and particularly abstinence after long-term use.
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Opponent-Process Model Weaknesses: Doesn’t explain the transition from initial =>
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Unformatted text preview: repeated drug use • Doesn’t explain drug craving particularly well Incentive-Sensitization Model Incentive-Sensitization Model Strengths: • Accounts for the paradox of gradual drug tolerance with increased craving • Accounts for the long-term nature of drug craving and relapse • Accounts for craving and relapse despite the fact that the addict is miserable and his/her life is in ruins • Implies underlying neural changes to account for long-term changes in behavior Incentive-Sensitization Model Weaknesses: • Paucity of evidence for distinct “liking” and “wanting” neural circuits • Doesn’t explain the transition from initial => repeated drug use...
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This document was uploaded on 03/12/2012.

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Lecture+16+Addiction+5-28-10 - repeated drug use •...

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