AP PSYCHOLOGY

Detailed explanation-1: -The monoamine-deficiency theory posits that the underlying pathophysiological basis of depression is a depletion of the neurotransmitters serotonin, norepinephrine or dopamine in the central nervous system.

Detailed explanation-2: -Studies have shown that as many as 85% to 90% of the public believes that depression is caused by low serotonin levels or a chemical imbalance. Researchers have found no clear evidence that serotonin levels or activity cause depression, according to a review of prior research published in Molecular Psychiatry.

Detailed explanation-3: -Dopamine system dysfunction is linked to certain symptoms of depression, such as low motivation. Serotonin is involved in how you process your emotions, which can affect your overall mood.