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정신분열증 환자에서 정서유발단어에 의한 정서 반응성

Emotional Responsivity to the Emotional Words in Patients with Schizophrenia

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주제분류정신과학

초록

본 연구는 정서유발단어 자극을 이용하여 정신분열증 환자와 정상인 사이의 정서 경험에 따른 정서 반응성의 차이를 보고자 하였다. 연구 결과 행복, 슬픔, 공포 유발단어의 경우는 각각 해당 정서의 정서 반응성이 정신분열증 환자와 정상 대조군 사이에서 유의미한 차이를 보이지 않았다. 하지만, 분노 및 역겨움 정서유발단어의 경우는 각각 해당 정서의 정서 반응성이 정신분열증 환자가 정상 대조군에 비해 유의미하게 낮거나 혹은 낮은 경향성을 보였다. 또한 정신분열증 환자군은 유의하게 역겨움 정서 및 행복 정서에 대한 증가된 편향 반응성을 보였다. 이는 정신분열증 환자에서 부정적 정서 유발 단어에 의해서 정서 반응성이 정상인과 다른 둔마된 양상을 보이고 있으며, 또한 사회적 정서 자극에 대한 편향된 반응성이 있음을 시사한다. 향후 정신분열증에서 정서 반응성의 둔마와 더불어 반응성의 편향에 대하여, 표정, 단어, 사건 등의 다양한 정서 자극을 사용하여, 체계적으로 재현하는 후속 연구가 필요하다.

Abstract

Objectives: Patients with schizophrenia are reported to exhibited a reduced level of responsivity to highly arousing negative emotional pictures and to demonstrate a threatening bias to facial stimuli. The aim of this study was to investigate whether patients with schizophrenia show impaired and biased responsivity to threatening emotional words stimuli. Methods: Eighteen subjects with schizophrenia (M=10, F=8) and 18 healthy controls (M=8, F=10) were involved in this study. Emotional words stimuli (happy, sad, fearful, angry, surprising, and disgusting words) were selected from a Korean affective words list (Kim et al., Unpublished). All subjects were asked to rate feelings elicited by emotional words, using the seven point Likert scale for each of the six basic emotions. Results: Patients with schizophrenia displayed less emotional responsivity to disgusting and angry words as compared to healthy controls, while there were no significant differences in response to happy, sad, or fearful words. Emotional responsivity bias to disgust and happiness was observed in patients with schizophrenia. Conclusion: Patients with schizophrenia may show reduced responsivity to disgust and anger words stimuli and biased responsivity to disgust and happiness. These findings are in line with previous findings of reduced reactivity to highly arousing emotional picture stimuli, social threatening bias, and Pollyanna tendencird in schizophrenia.

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