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Perceptual bias of patients with schizophrenia in morphed facial expression
Huang, Jia1,2; Chan, Raymond C. K.1,2; Gollan, Jackie K.4; Liu, Wenhua3,5; Ma, Zheng6; Li, Zhanjiang6; Gong, Qi-yong7; Chan, RCK (reprint author), Chinese Acad Sci, Inst Psychol, Neuropsychol & Appl Cognit Neurosci Lab, 4A Datun Rd, Beijing 100101, Peoples R China.
2011-01-30
发表期刊PSYCHIATRY RESEARCH
ISSN0165-1781
文章类型Article
卷号185期号:1-2页码:60-65
产权排序1,2
摘要Limited research has specifically examined the nature of the dysfunction in emotion categorization representation in schizophrenia. The current study aimed to investigate the perception bias of morphed facial expression in subjects with schizophrenia and healthy controls in the emotion continua. Twenty-eight patients with schizophrenia and thirty-one healthy controls took part in this study. They were administered a standardized set of morphed photographs of facial expressions with varying emotional intensities between 0% and 100% of the emotion, in 10% increments to provide a range of intensities from pleasant to unpleasant and approach to withdraw. Shift points, indicating the time point that the subjects' emotion identification begins to change, and response slopes, indicating how rapidly these changes have happened at the shift points in the emotion continuum, were measured. Patients exhibited a significantly greater response slope (i.e., patients' perception changed more rapidly) and greater shift point (i.e., patients still perceived mild expressions of anger as happy faces) with increasing emotion signal compared with healthy controls when the facial expression morphed from happy to angry. Furthermore, patients with schizophrenia still perceived mild expressions of fear as angry faces(a greater shift point) and were less discriminative from angry to fearful emotion(a flatter response slope). They were sensitive to sadness (a smaller shift point) and the perception changed rapidly (a sharper response slope) as compared with healthy controls in the emotion continuum of happy to sad. In conclusion, patients with schizophrenia demonstrated impaired categorical perception of facial expressions, with generally 'rapid' but 'late' discrimination towards social threat-related stimuli such as angry facial expression. Compared with healthy controls, these patients have a sharper discrimination perception pattern in the emotion continua from positive valence to negative valence. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
关键词Emotion perception Schizophrenia Morphed facial expression
学科领域Abnormal Psychology
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收录类别SCI
语种英语
项目资助者Sun Yat-Sen University [16000-3253182] ; Institute of Psychology [O7CX031003] ; Chinese Academy of Sciences [KSCX2-YW-R-131] ; National Science Foundation of China [30770723] ; National Basic Research Programme [2007CB512302/5]
资助项目一室陈楚侨课题组
项目简介This study was supported partially by the 100-Scholar Plan (16000-3253182) from Sun Yat-Sen University, the Project-Oriented Hundred Talents Programme (O7CX031003) of the Institute of Psychology, the Knowledge Innovation Project of the Chinese Academy of Sciences (KSCX2-YW-R-131), and the National Science Foundation of China (30770723), and the National Basic Research Programme (973 Programme No. 2007CB512302/5).
WOS记录号WOS:000287113000011
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/7283
专题脑与认知科学国家重点实验室
通讯作者Chan, RCK (reprint author), Chinese Acad Sci, Inst Psychol, Neuropsychol & Appl Cognit Neurosci Lab, 4A Datun Rd, Beijing 100101, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Psychol, Neuropsychol & Appl Cognit Neurosci Lab, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
3.Sun Yat Sen Univ, Fac Life Sci, Guangzhou 510275, Guangdong, Peoples R China
4.Northwestern Univ, Dept Psychiat & Behav Sci, Chicago, IL 60611 USA
5.Guangzhou Med Coll, Fac Human & Social Sci, Guangzhou, Guangdong, Peoples R China
6.Capital Med Univ, Beijing Anding Hosp, Beijing, Peoples R China
7.Sichuan Univ, W China Sch Med, W China Hosp, Huaxi MR Res Ctr,Dept Radiol, Chengdu 610064, Peoples R China
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Huang, Jia,Chan, Raymond C. K.,Gollan, Jackie K.,et al. Perceptual bias of patients with schizophrenia in morphed facial expression[J]. PSYCHIATRY RESEARCH,2011,185(1-2):60-65.
APA Huang, Jia.,Chan, Raymond C. K..,Gollan, Jackie K..,Liu, Wenhua.,Ma, Zheng.,...&Chan, RCK .(2011).Perceptual bias of patients with schizophrenia in morphed facial expression.PSYCHIATRY RESEARCH,185(1-2),60-65.
MLA Huang, Jia,et al."Perceptual bias of patients with schizophrenia in morphed facial expression".PSYCHIATRY RESEARCH 185.1-2(2011):60-65.
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