... monoamines. Monoamines are classified into to groups, catecholamine and indolemine. Dopamine is within the catecholamine class and seratonin along with another prominent neurotransmitter melatonin are from the indolemine class. Dopamine is essential because it has an impact on drugs and in relation to the question it has an impact on drug addiction and drug reward. Dopamine affects brain processes that control movement, emotional response, and the ability to experience pleasure and pain. Regulation of dopamine plays a crucial role in our mental and physical health. Many of the concepts that apply to dopamine apply to other neurotransmitters as well. As a chemical messenger, dopamine is similar to adrenaline. Dopamine affects brain processes that control movement, emotional response, and ability to experience pleasure and pain. Regulation of dopamine plays a crucial role in our mental and physical health. Neurons containing the neurotransmitter dopamine are clustered in the midbrain, in an area called ...

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