The objective of this research is studying the basic symptoms in schizophrenic patients and determines the most frequent basic symptom and the most frequent type of schizophrenia in them. Also, providing a new classification of basic symptoms

This study is a descriptive – analytic one. A sample of 100 patients of both sexes(age: 17-4O)was selected. To study the basic symptoms of schizophrenia in them, we used a 44 item questionnaire which was provided through a combination of PANSS (Emsley, 2003) and Kitamura questionnaires. we used MMPI test. The findings were analyzed by descriptive statistics and through the computer software SPSS. Also a PCA method of factor analysis was used to the hypotheses.

single (62%=49 patients), unemployed (52%=52 patients), with no education (31%=31 patients), negative family history (91%=91 patients), with frequent admission (47%=47 patients). The most frequent basic symptom in these patients was attention deficit, and social withdrawal was at second place. Also, the highest frequent type of schizophrenia was paranoid schizophrenia (44%=44 patients).

This study's findings are similar to with the results of the last studies about the basic symptoms of schizophrenia and also with DSM-IV and Bleulerand Kraepelin symptoms . it seems that all of these systems introduce the different fields of a single diagnostic structure rather than antagonist ones.

However, two important recognized factors were cognitive disorder and relationship disorder. This study suggests that if we recognized emotional symptoms and restlessness, we should think of other psychotic disorders.