The disgnostic criteria used currently for the diagnosis of the schizophrenia have as base the CID 10 that they place the presence of characteristic symptoms for a significant portion of time during the period of 1 month (or less, if treated successfully), as: Deliriums; Hallucination; Disorganized speech; Disorganized or catatnico behavior; Negative symptoms, that is, affective embotamento and others. On these symptoms a research in 24 was elaborated mdiuns for the 3 SCAN, a type of psychiatric interview standard and for DDIS (Dissociative Disorders Interview Schedule). Scale DDIS investigates the first-class presence of 11 symptoms for the schizophrenia diagnosis. Mdiuns had presented, on average, four of them, but the presence of the symptoms did not indicate the existence of no insanity; The report also it says: ' ' Moreover, they also they had presented a good social adequacy and they had demonstrated to better have a mental health that of the population in general ' '. It did not have mental correlation between frequency of medinica activity and problems or social misalignment. Since the end of the decade of 90 CID 10 (international code of illnesses) defines that it has the normal state of settles or possession, that is that one that happens during a medinica manifestation, and the pathological one, caused for some illness. In scientific literature, many times mdiuns (that if it communicates with espritos) are described as people of low escolaridade and income. Its mediunidade must be understood as one ' ' mechanism of defense against the oppressions sociais' ' , or as manifestation of some dissociativo or psychotic picture. However, a study carried through for psychiatrist Alexander Moreira de Almeida 4 with mdiuns espritas of the city of So Paulo showed a different profile: mdiuns had presented one high level partner – educational and a prevalence of lesser mental upheavals of what the found one in the population in general.