PATHOLOGY

Detailed explanation-1: -Dopamine and serotonin are chemical messengers, or neurotransmitters, that help regulate many bodily functions. Dopamine is involved in movement, coordination, and feelings of pleasure and reward. Serotonin, too, is involved in emotions, but it also affects digestion and metabolism.

Detailed explanation-2: -The major neurotransmitters in your brain include glutamate and GABA, the main excitatory and inhibitory neurotransmitters respectively, as well as neuromodulators including chemicals such as dopamine, serotonin, norepinephrine and acetylcholine.