Harrison has increased levels of the neurotransmitter dopamine in his prefrontal cortex and fluid-filled areas in his brain. which disorder might he be at risk of experiencing

The disorder that he might be at risk of experiencing schizophrenia. This is a mental disorder which usually appears in late adolescence or early adulthood. Normally characterized by hallucinations, delusions, and other cognitive difficulties. This condition affects how a person thinks, feels and behaves, although not common as compared to other disorders it can be very disabling and a lifelong struggle.