Prefrontal —\ucleus
cortex accumbens Ventral
tegmental
area
Figure 21.5. Medial view of brain showing dopaminergic reward pathways
connecting the ventral tegmental area with the nucleus accumbens and pre-
frontal cortex.Limbic, from Latin limbus = border, edge. These are structures along
the interior border of the cerebrum, at the edge between the cere-
brum and the brainstem.The neurotransmitters oxytocin and dopamine, mentioned above,
have been implicated in specific roles in regulating emotions. Sero-
tonin, with its widespread occurrence in the brain, has also been
cast in a renowned part. In the quest to find simple explanations for