Nuclues Accumbens

Nucleus accumbens has an important role in reward, pleasure, reinforcement learning, laughter, addiction, aggression, fear, impulsivity and the placebo effect.

 The nucleus accumbens is involved in controlling our motivations. Also, the frequent consumption of a drug is known to tremendously increase the amount of the main neurotransmitter in this part of the brain, dopamine. We can therefore better understand the drug addict’s obsessive drive to keep seeking more of the drug.

The Nucleus accumbens is based on two essential neurotransmitters Dopamine, which promotes desire, and serotonin, whose effects include satiety and inhibition. Many animal studies have shown that all drugs increase the production of dopamine in the nucleus accumbens, while reducing that of serotonin


 

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