If a Person Receives the Chemical L-Dopa, a Precursor of Dopamine

question 69

Multiple Choice

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 might one reasonably conclude from this?

• A) L-dopa causes schizophrenia.
• B) Excessive dopamine produces schizophrenic symptoms.
• C) Antipsychotic medication decreases the amount of L-dopa in the brain.
• D) Antipsychotic medication increases the amount of dopamine in the brain.

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