Another point that this article does not discuss is that in many of the "less coercive" societies, schizophrenia or related diseases are not seen as a disease or problematic at all.
McKenna writes: "A shaman is someone who swims in the same ocean as the schizophrenic, but the shaman has thousands and thousands of years of sanctioned technique and tradition to draw upon. In a traditional society, if you exhibited “schizophrenic” tendencies, you are immediately drawn out of the pack and put under the care and tutelage of master shamans. You are told: “You are special. Your abilities are very central to the health of our society. You will cure. You will prophesy. You will guide our society in its most fundamental decisions.”" [0]
McKenna writes: "A shaman is someone who swims in the same ocean as the schizophrenic, but the shaman has thousands and thousands of years of sanctioned technique and tradition to draw upon. In a traditional society, if you exhibited “schizophrenic” tendencies, you are immediately drawn out of the pack and put under the care and tutelage of master shamans. You are told: “You are special. Your abilities are very central to the health of our society. You will cure. You will prophesy. You will guide our society in its most fundamental decisions.”" [0]
[0]: http://www.scribd.com/doc/12470230/Eros-and-the-Eschaton-rou...
See also: https://en.wikipedia.org/wiki/Social_construction_of_schizop...