AP PSYCHOLOGY

Detailed explanation-1: -The “original dopamine hypothesis” states that hyperactive dopamine transmission results in schizophrenic symptoms. This hypothesis was formed upon the discovery of dopamine as a neurotransmitter in the brain by Arvid Carlsson (6–12).

Detailed explanation-2: -Increases in dopamine activity in certain parts of the brain can contribute to the positive symptoms of schizophrenia. Meanwhile, reduced dopamine activity in other parts of the brain may affect negative and cognitive symptoms. Dopamine is just one of many factors involved in schizophrenia symptoms.

Detailed explanation-3: -Some other ways dopamine affects the body include: Mood regulation: Insufficient dopamine can contribute to depression. Meanwhile, some research has found that too much dopamine could cause mania.