Drug Abuse and Addiction I. Why are Drugs Addicting ? A). Animal Self-administration Studies 1. Methodology: 2. Results: B). Common Mechanism of Action 1. What effects do all abused drugs share:2. PET scans in cocaine-abusers 3. Genetic studies in mice II. Why Are Some People More Likely to Become Addicted? A). Dopamine System 1. Blum A1 Allele Study 2. A1 Allele and
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