[Relationship between perception of facial expression by schizophrenic patients and disorders in their assessment of probability]. / Ob osobennostiakh vospriiatiia mimiki bol'nymi shizofreniei v sviazi s narusheniem u nikh veroiatnostnykh otsenok

ABSTRACT

The author proposes a method of studying some traits of mimic perception where an oral report is avoided. The essence of the method is in a distribution by the examine of a series of photographs of the same face into such groups so as to have similar facial expressions. The experiments demonstrated that such distributions are mainly performed on a direct intuitive level. The examinee is given several series of photographs of different faces. In an evaluation of the results the probability of different combinations attained in a group of normals are being considered. The author compared a group of schizophrenic patients (60 cases) and a group of normals (100 cases). The patients significantly more frequently (p less than 0.001) give combinations of photographs with a low probability 0.01-0.05. The preliminary data indicate that this trait correlates with the severity of the clinical picture. Among the normals 7% of the examined individuals gave a stable high amount of answers with a low probability. This group of individuals detected characterological peculiarities reflected in the questionnaire. It may be assumed that this trait in the evaluation of mimics is due to a constitutional and morbid process.