The substance known as _______ has been implicated in the development of schizophrenic symptoms.

A) melatonin
B) norepinephrine
C) serotonin
D) dopamine

Dopamine

A neurotransmitter in the brain that is involved in regulating mood, sleep, attention, learning, and the reward system.

Schizophrenic Symptoms

Manifestations of schizophrenia, including delusions, hallucinations, disorganized speech, and impaired social or occupational functioning.