The first type of schizophrenia is called simple schizophrenia, which is the simple or undifferentiated type of schizophrenic, manifests an insidious and gradual reduction in his external relations and interest. His emotions lack depth, his ideation is simple and refers to concrete things, and there is a relative absence of mental activity, a progressive lessening in the use of inner resources, and a retreat to simpler or stereotyped forms of behavior (Encyclopedia Britannica, 2003).

a) A brain disease, with concrete and specific symptoms due to physical and biochemical changes in the brain

Schizophrenia is a mental disease that is characterized by withdrawal from reality. Schizophrenia is an illness that can affect even some with great intelligence. Now thanks to certain prescription drugs the mental illness can be treated and kept under control.

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