I suggest that,
If there is an emotional problems in early childhood, the schizophrenia cause has seeks to using the data of these problems to modeling its trajectories in the psychological life of the person ,that is in the early third decade of life and after first launching spark of psychosis processes which continue to unlimited time
I.e the emotional problems is not the cause of sz and cannot causing the sz ,because its data is the ore to establishing the trajectory of schizophrenia in the psychological life of the person
Example to explain the notion.
If we assumed that,in the past and during the adulthood decade,there was a failing personality relationship between a young man and girl .
All data of the failing relationship be stored in the memory of the young man.
In the first third decade of life,the manifestations of the sz has arises in the psychological life of the young man.
The cause of Sz has using the data of the failing relationship to modeling its trajectory in the psychological life of the young man,making it the main and importance event in the life of the young man for a long time
The old event content controlling the present events and determine its trajectory
The old event data in the past controlling the current daily life events and moving them
For a long time,the mind/emotion of the young man be occupied with the failing relationship which has effects on the current daily life events that he coexistences with
For many months,the mind has focuses his attention,interesting and occupation with the old event data which interacting with present events
Interesting. It is kind of sad how peer victimization can cause their life outcome to change so much.