What are symptoms of low dopamine in the brain?

Poor concentration: Dopamine serves many functions in the brian, depending on the specific area in which it is working. In the prefrontal cortex, low concentrations of dopamine result in poor concentration, easy distractibility, irritable mood, and so on. In other areas, it may cause movement disorders.

Tough to say: Although the field of psychiatry continues to advance there is still hypotheses about the relationship of specific monoamine neurotransmitters to the diagnoses specified in the dsm-v. If one allows for the possibility of an incomplete heuristic then one would theorize that low Dopamine could predispose to inattentiveness, slowed thinking, impulsivity, decreased energy, anhedonia, and depression.