I believe there are some problems with this article and bringing the research forward to the US. While there is documentation of creativity and bipolar disorder, schizophrenia in the US is seen as decreasing cognition and creativity due to brain damage that occurs as young as childhood. It has been my experience that patient artists and writers are often bipolar, but have not once found that with schizophrenic patients.
The question I have is how the article and research were translated, and how is a disorder defined differently in Sweden. The American system of diagnosis and disorder description is not accepted or followed by all other countries.
Further, one must look deeply at the purpose of creativity in humanity. What is disordered and what is survival of species? What is innate brilliance and what is from dysfunction of the brain?