Researchers have been puzzled as to the exact nature of brain dysfunction in patients with schizophrenia. While the dopamine hypothesis is not a perfect explanation for schizophrenia, evidence in its favor includes which of the following?

A) Amphetamines, which enhance dopamine activity, can produce temporary psychosis.
B) Drugs that block the action of dopamine also alleviate the symptoms of schizophrenia.
C) The same drugs can alleviate both schizophrenia and amphetamine psychosis.
D) All of the above.

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landon rutledge · Accepted Answer

Final Answer : D, Explanation :  All three statements (A, B, and C) support the dopamine hypothesis as evidence for the role of dopamine dysfunction in schizophrenia. The fact that amphetamines, which enhance dopamine activity, can produce temporary psychosis suggests that high levels of dopamine may be involved in psychotic symptoms. Conversely, drugs that block the action of dopamine can alleviate schizophrenia symptoms, indicating that low levels of dopamine may contribute to the disorder. Finally, both schizophrenia and amphetamine psychosis can be treated with the same drugs, further supporting the role of dopamine in these conditions.

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