Which is the best explanation for the involvement of the prefrontal cortex in schizophrenia?

Question

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The prefrontal cortex is involved in complex behaviors including planning, decision making, and moderating social behavior. In schizophrenia, particularly in those with predominantly negative symptoms (such as apathy, lack of emotion, and poor social functioning), there is often observed a decrease in the activity of the prefrontal cortex. This underactivity is associated with the deficits in executive functions and social interactions characteristic of the negative symptoms of schizophrenia.

Which Is the Best Explanation for the Involvement of the Prefrontal