Over the past year, James has developed a hand tremor, rigidity in his limbs, and sometimes has difficulty walking up stairs. His doctor has concluded that James is showing symptoms of Parkinson’s disease. The symptoms James is experiencing are due to
a. a depletion of dopamine release in the dorsal striatum of the basal ganglia.
b. an excess of dopamine release in the dorsal striatum of the basal ganglia.
c. a depletion of dopamine release in the ventral striatum of the basal ganglia.
d. an excess of dopamine release in the ventral striatum of the basal ganglia.
e. an excess of levodopa in the ventral striatum of the basal ganglia.
Answer: A
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