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Cocaine Addiction Stems from Desire, Not the Drug (Scientific American) |
Scientists know that addictive drugs can mess with the brain’s circuitry and hijack its reward systems, but a July 31 rat study in the journal Neuron shows that psychological factors may be more instrumental in causing these changes than a drug’s chemical effects are. Cocaine use triggers long-lasting cellular memories in the brain, the study found–but only if the user consumes the drug …
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