Abstract
Hallucinations in schizophrenic disorders are one of the major problems encountered in psychopathology. They are found so often in all phases of the clinical course. Therefore these problems have been few statistical studies of schizophenic hallucination by direct interview. In this paper, I investigated the phenomenology of schizophrenic hallucinations (auditory, visual, body sensational, tactile, olfactory, gustative). This study dealt with the schizophrenic hallucinations reported by 130 inpatients and 87 outpatients during an interview with each patient over about 2 months. Seventysix inpatients (58.5 %) and 19 outpatients (21.8 %) had hallucinations. In this phenomenological study, I examined throughly the characteristics of schizophrenic hallucinations through investigation of experiences reported by each patient and by consideration of the frequencies of these hallucinations. This study reveals the psychological viewpoint of each hallucination and the patient's impression of the hallucination. As a result, it was found that auditory hallucinations and abnormal body sensations were of the highest frequency in schizophrenic hallucinations. From this study, it may be concluded that schizophrenic hallucinations are pseudo-hallucinations because they lack perceptual characteristics. Patients in the stage of exacervation experience hallucinations with reality, but they cannot explain their detail. On the other hand, patients in the chronic stages describe hallucinations in detail, but without reality. The characteristic schizophrenic hallucination does not include the perceptive components, but there is delusional conviction.
