Judged: two independent readers; copy check clear.
dopamine
dopamine Dopamine is a catecholamine neurotransmitter in the brain.
Dopamine is a catecholamine neurotransmitter in the brain. It is made from tyrosine, serves as a precursor to norepinephrine and epinephrine, and plays an important role in the brain systems that regulate movement through its actions at dopamine receptors.