Question

Research suggests that _____, a neurotransmitter, may be a major contributor to the development of schizophrenia.

Answer 1

It seems that you have missed the necessary options for us to answer this question. But anyway, here is the answer. Research suggests that DOPAMINE, a neurotransmitter, may be a major contributor to the development of schizophrenia. This neurotransmitter is responsible for transmitting signals in between the nerve cells (neurons) of the brain. Hope this helps.

Answer 2

Dopamine.

Step-by-step explanation:

Dopamine is a neurotransmitter and generally excitatory in nature. Dopamine is present at the adrenal medulla and in the nerve endings as well. Dopamine is also known as prolactin-inhibiting hormone.

The dopamine acts as inhibitory neurotransmitter in the schizophrenia. The dopamine improper functioning in mesolimbic and prefrontal brain regions makes the schizophrenia condition most drastic.

Thus, the answer is dopamine.