has anyone heard of a study/ article that links concentrating too hard with schizophrenia?

[Finn]

I heard today that focusing intently was said to be a little known cause of schizophrenia. I know I've seen studies that linked what is considered to be ocd and schizophrenia (so maybe they meant obsessive thinking instead of concentration). there was a study

about how the inability to switch between internal and external focus was implicated. Has anyone heaard of this?

 

(Sorry about the second thread started and any errors...I'm using phone, which was being annoying)