Psycholinguistics Analysis of Schizophrenia Spectrum Disorders Patients’ Writing and Oral Speech (on the Example of the Autobiographical Texts)

Abstract

Introduction. There are speech disorders as one of the psychopathology diagnostics criteria in ICD and DSM. However, the linguistic component is not enough studied, so the study topic is actual. The use of text analysis allows to apply psycholinguistics approach to the objectification of thinking disorders. The objective of the study was aimed to detect psycholinguistics features of oral and written speech in patients with schizophrenia.Methods and materials. Participants were 29 schizophrenia patients, 20 patients with personality disorder and 25 healthy participants. Methods: expert assessment, anamnestic assessment, experimental-psychological (tests of thinking, collect memories), linguistic analysis, statistical analysis.Results. Oral speech of patients with schizophrenia is complex and volume, the writing speech is «factual», lexically varied and low communicative. In oral and writing speech of patients with schizophrenia, there are three text types correlated with thinking disorders. Texts of patients with schizophrenia are less volume, simpler in structure, describe more facts than thoughts and feelings, unlike patients with personality disorder and healthy participants.Conclusion. Texts of patients with schizophrenia, personality disorder and healthy participants are different in formal linguistics characteristics. Such characteristics of the speech of patients suffering from schizophrenia as a lot of impersonal sentences describing object attribute, complexly organized speech, emphasis on describing emotions and oneself using the pronoun «I» allow to suppose that the patient has thinking disorders: thinking distortion by formal and latent ways of object attributions, thinking purposefulness disorder, thinking «versatility».