Task: Text Categorization
Input (English): A catecholamine, it is more selectively metabolized by the monoamine oxidase MOA-B than seratonin or norepinephrine, although it is a metabolic precursor to the latter. For ten points, name this neurotransmitter synthesized from tyrosine and believed to play a role in schizophrenia, whose deficiency is a cause of Parkinson's disease.
Output (English): Science