CCK receptors significantly influence neurotransmission in the brain, regulating anxiety, feeding, and locomotion and CCK-B receptors possess a complex regulation of dopamine(neurotransmitter) activity in the brain.
CCK receptors significantly influence neurotransmission in the brain, regulating anxiety, feeding, and locomotion. CCK-B receptors possess a complex regulation of dopamine activity in the brain. Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a hormone and a neurotransmitter that plays several important roles in the brain and body. 
