The sagittal MRI of the brain shows the brain from the side. This art rendering shows all parts of the brain including the forebrain, midbrain and hindbrain as well as the beginning of the spinal cord.
The nucleus accumbens is shown as a red dot at the base of brain near the hypothalamus. The nucleus accumbens is one of the most primitive part of the brain. It is part of the basal part of the forebrain. It is a paired structure. Alcohol promotes pleasure by stimulating the nucleus accumbens.