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Dopamine is the key neurotransmitter released by addictive drugs, intensifying feelings of pleasure and contributing to addiction.
Dopamine is the neurotransmitter released by addictive drugs like cocaine, nicotine, and amphetamines, stimulating the nucleus accumbens to intensify feelings of pleasure. This increase in dopamine levels plays a critical role in the brain's reward system and contributes to the addictive nature of these substances.
Drugs of abuse target the brain's pleasure center, leading to large and rapid surges in dopamine levels, causing the intensely pleasurable effects that motivate repeated drug use. The alteration of dopamine signaling in the nucleus accumbens by drugs like amphetamines and cocaine results in addictive behaviors due to the prolonged activation of the brain's reward circuit.
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