The Swiss medium Hannes Jacob (based in Neuchâtel) actually works on exactly this question [0], calling it the "Hannes Jacob Syndrome", which states the followi

The Swiss medium Hannes Jacob (based in Neuchâtel) actually works on exactly this question [0], calling it the "Hannes Jacob Syndrome", which states the following: A certain percentage of people diagnosed with "schizophrenia" are misdiagnosed. They are in fact people whose sensitivity is such that they have spontaneous contact with what we usually call "the other side", "beyond", etc., not constructs produced by mental illness. And yes, he collaborates with licensed Swiss psychiatrists. What's more, he actively searches for scientists who are willing to put his various discoveries to the test, as it was already done at the University of Tübingen/Germany (if you know any such scientists, please establish contact). He has just finished his book "Au-delà d'un défunt" [1] which is a pretty incredible read. [0] http://blog.hannesjacob.ch/2016/01/12/syndrom-hannes-jacob/ http://blog.hannesjacob.ch/2016/01/12/syndrom-hannes-jacob/ [1] https://www.payot.ch/Detail/au_dela_dun_defunt-mahan_hannes_jacob-9782882562043 https://www.payot.ch/Detail/au_dela_dun_defunt-mahan_hannes_...