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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
Source PublicationPSYCHIATRY RESEARCH
ISSN0165-1781
SubtypeArticle
Volume185Issue:1-2Pages:60-65
Contribution Rank1,2
AbstractLimited 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.
KeywordEmotion perception Schizophrenia Morphed facial expression
Subject AreaAbnormal Psychology
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Indexed BySCI
Language英语
Funding OrganizationSun 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]
Funding Project一室陈楚侨课题组
Project Intro.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 IDWOS:000287113000011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/7283
Collection脑与认知科学国家重点实验室
Corresponding AuthorChan, RCK (reprint author), Chinese Acad Sci, Inst Psychol, Neuropsychol & Appl Cognit Neurosci Lab, 4A Datun Rd, Beijing 100101, Peoples R China.
Affiliation1.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
First Author AffilicationKey Laboratory of Mental Health, CAS
Recommended Citation
GB/T 7714
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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