MCAT Behavioral Sciences Question 104: Answer and Explanation
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Question: 104
14. A woman notices that her father has started to move his fingers in such a way that it looks like he is rolling something, despite nothing actually being there. She also notes slowed movement and a shuffling gait. Which neurotransmitter is likely to be present in decreased levels in her father's brain?
- A. Epinephrine
- B. Histamine
- C. Dopamine
- D. Serotonin
Correct Answer: C
Explanation:
The symptoms indicate that the woman's father likely has Parkinson's disease. This disease is caused by decreased dopamine production in the substantia nigra.