http://www.psychlaws.org/BriefingPapers/BP10.htm "One important measure that discriminates between patients with schizophrenia and those with bipolar disorder is intelligence. In general, patients with schizophrenia exhibit a 10-point decline of intelligence once their illness begins. That is, patients with schizophrenia have normal or near normal IQ’s premorbidly but, even during the early phases of their illness, exhibit a marked attenuation in intellectual function. In contrast, patients with bipolar disorder generally are able to maintain their IQ level."
> Arash wrote:
>
>>This is a bit peripheral to the discussion but I don't think there is a
>>large correlation between intelligence and bipolar disorder.
>
> A psychologist friend of mine did some research in the 1980s showing
> that people of higher socioeconomic status were more likely to be
> diagnosed as bipolar, and those of lower SES with similar symptoms,
> as schizophrenic.
>
> Doug
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