Mice bred without dopamine receptors in the nucleus accumbens quickly starve themselves to death.

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The researchers found that the nucleus accumbens was also interacting with another region of the brain called the auditory cortical stores.

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"When the DSM is finally full of words like nucleus accumbens and putamen, " says Mr. Greenberg, critics like him will be out of business.

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Self-disclosure was strongly associated with increased activation in brain regions that form the mesolimbic dopamine system, including the nucleus accumbens and ventral tegmental area.

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When she neutralizes the amygdala in rats with a drug that halts its function, they no longer pig out even if their nucleus accumbens is stimulated.

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The exact role of the nucleus accumbens is a mystery.

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The hypothalamus also has connections to the cortex via the striatum and the nucleus accumbens, a structure that secretes its own dopamine and opioids in response to food (see graphic).

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Offers of cash caused a surge of dopamine in a tiny piece of neural machinery called the nucleus accumbens--a structure as ancient as backbones that plays a key role in addiction.

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By analysing the scans, the scientists found that the nucleus accumbens was "lighting up" and depending on the level of activity, the researchers could predict whether the participant was likely to buy a song.

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