[Psychopathological study of schizophrenia according to the pyramidal model]

In this work we aimed to verify the main hypotheses of the pyramidical model where the presence in schizophrenia of four distinct but no coexclusive syndromes (positive, negative, depressive, excited) is described. The test was done by applying the PANSS (the Positive and Negative Syndrome scale) on 30 patients with a schizophrenia diagnosis according to the DSMIIIR. The PANSS was administered to 12 women and 18 men aged between 20 and 42 years old. The statistical analysis of data was done using Kendall's test and Sperman's test. The first test we checked if the four syndromes were statically independent and mutually exclusive, or if there was probability of association between them. The result proves that the four syndromes are statistically independent but not coexclusive though. Though Sperman's test we wanted to find out if there was a complete independence between positive and negative syndromes and between the latter and the depressive syndrome or if there was a probability of association between them. The results point out that the positive syndrome is independent of the negative syndrome and the latter is independent of the depressive syndrome. However, there is a significant level of association between the depressive syndrome and the negative syndrome.