3.c) Schizophrenia and genetics.

Schizophrenia is probably the most well-known and common disorder of the decision-making system.

To some extent, all of us have a certain degree of schizophrenia, which, in my opinion, is good and natural. The problem appears when the degree of schizophrenia reaches the point in which it becomes serious and uncontrollable.

I would like to include a brief commentary in the sense that the main causes of schizophrenia in this type of the decision-making behaviour could be, independently of genetic or hereditary predisposition, wanting to understand things or aspects of life that are truly impossible to understand because they do not depend on logic, but rather wanting to understand one's own emotions, and especially those of others, or even more serious, wanting to understand the personal logic of another person.

Furthermore, on many occasions, the error consists in trying to solve a problem that is not a problem and that also does not depend on us. To give a simple and somewhat childlike example that is nonetheless repeated throughout life in a thousand and one forms:

"I have my hands behind my back and ask: which hand is the candy in? Then, the only thing I have to do is put the candy in the opposite hand than that stated in the answer".

That is, it's a brain game in which the person who thinks and responds never wins, it is a false dilemma, and we can force the intelligence as much as we want, but we will not obtain any satisfactory solution.

In an attempt to understand something that resists us, sometimes it is useful to try to place ourselves in different initial situations, with different prejudices or preconceptions, forcing our intelligence to examine different points of view or perspectives.

If we do so with sufficient intensity and time, what we are doing is damaging the brain’s normal decision-making process in the way that we change the development of the system and this does not only become an automatic process beyond our conscious control but it also tends to modify our genetic endowment related to these processes, given that, in my opinion, it is fairly flexible, allowing for the possible transmission of the problem to our descendents.

Logically, a person who is considered fairly intelligent will have the tendency to try to understand the mentioned situations and, therefore, there could be a certain statistical correlation between intelligence and schizophrenia. Perhaps this effect would be greater in people with problems related to dyslexia, given that memory recreates different points of view for its operation, even if it is not flawed, it is limited and also as at least some genetic connotations.

As far as the genetics of schizophrenia, it is worth remembering that the concordance between identical or monozygotic twin brothers is 0.69 for schizophrenia, which shows us that they have a marked genetic character while in non identical or dizygotic twin brothers it is 0.10.