Dopamine
Dopamine is an important neurotransmitter that regulates our emotional responses, movement, pain, and the brain’s pleasure and reward center. Without dopamine, we wouldn’t be able to feel pleasure or motivation; however, it can also play a role in addiction. Introduction Dopamine is a neurotransmitter, which is a chemical released by neurons (nerve cells) to send signals to other nerve cells ( R ). Dopamine is produced in the dopaminergic neurons in the ventral tegmental area (VTA) of the midbrain, the substantia nigra pars compacta, and the arcuate nucleus of the hypothalamus ( R ). There are several distinct dopamine pathways in the brain, one of which plays a major role in reward-motivated behavior ( R ). Dopamine levels in the brain is increased by most types of rewards, and dopamine neuronal activity is increased by most addictive drugs ( R ). Dopamine has many roles in humans, which include: movement, memory, pleasure and reward, behavior and ...