If a person receives the chemical L-dopa, a precursor of dopamine, it reduces the symptoms of Parkinson's disease. However, L-dopa may increase symptoms of schizophrenia. What can reasonably be concluded from this?
A) L-dopa causes schizophrenia.
B) Excessive dopamine produces schizophrenia-like symptoms.
C) Antipsychotic medication decreases the amount of L-dopa in the brain.
D) Antipsychotic medication increases the amount of dopamine in the brain.
Correct Answer:
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