Question at position 2 Kenny has been diagnosed with Parkinson disease and has been prescribed medication to manage some of his symptoms. The medication elevates the levels of dopamine in his system. If the levels of dopamine in his system become excessive, Kenny might start to exhibit symptoms associated withmultiple sclerosis.depression.schizophrenia.Alzheimer disease.单项选择题
A
multiple sclerosis.
B
depression.
C
schizophrenia.
D
Alzheimer disease.

Question

Question at position 2 Kenny has been diagnosed with Parkinson disease and has been prescribed medication to manage some of his symptoms. The medication elevates the levels of dopamine in his system. If the levels of dopamine in his system become excessive, Kenny might start to exhibit symptoms associated withmultiple sclerosis.depression.schizophrenia.Alzheimer disease.单项选择题

A

multiple sclerosis.

B

depression.

C

schizophrenia.

D

Alzheimer disease.

BlackTom AI · Accepted Answer

Kenny has Parkinson disease and is treated with medication that increases dopamine levels. The question asks which condition might emerge if dopamine becomes excessively elevated.
Option 1: multiple sclerosis. This is an autoimmune demyelinating disorder of the central nervous system and is not characterized by excess dopamine; its core features are not driven by dopamine dysregulation, so this choice is not supported by the scenario.
Option 2: depression. Although dopamine can play a role in mood, depression is not classically defined as a condition arising from an excess of dopamine. The link between oversupply of dopamine and depression is weak or indirect, making this an unlikely fit for the described mechanism.
Option 3: schizophrenia. Elevated dopaminergic activity, particularly in mesolimbic pathways, is associated with positive symptoms of schizophrenia (such as hallucinations and delusions). Since the scenario specifies excessive dopamine as a cause, this option aligns with established neurochemical models of schizophrenia.
Option 4: Alzheimer disease. Alzheimer disease is primarily characterized by amyloid plaques and tau tangles, with neurochemical changes more related to acetylcholine deficits and other pathways; it is not typically driven by dopamine excess, so this choice does not fit the scenario.
In summary, among the listed options, the condition most plausibly linked to excessive dopamine levels in this context is schizophrenia, while the other options do not correspond to a direct outcome of dopamine overflow.

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