Answer:
In the case of the psychiatric disorder schizophrenia, deficiencies and excesses in certain neurotransmitters — namely dopamine, serotonin, and glutamate — that relay information in the brain may help facilitate the condition’s development. Due to the complexity of this disorder, the involvement of neurotransmitters in schizophrenia is likely part of a larger mental illness foundation that also includes brain structure abnormalities, genetic predisposition, and environmental stressors.