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Biased number perception of schematic expressions in abstinent heroin abusers compared to normal controls.

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WOS被引频次:4
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成果类型:
期刊论文
作者:
Zhang, Meng;Zhu, Haiyan;Li, Xinyu;Shui, Rende;Shen, Mowei
通讯作者:
Shen, MW
作者机构:
[Shui, Rende; Zhang, Meng; Li, Xinyu; Shen, Mowei] Zhejiang Univ, Dept Psychol & Behav Sci, Hangzhou 310028, Peoples R China.
[Zhu, Haiyan] Yunnan Normal Univ, Fac Educ Sci & Management, Kunming, Peoples R China.
通讯机构:
[Shen, Mowei] Zhejiang Univ, Dept Psychol & Behav Sci, Hangzhou 310028, Peoples R China.
语种:
英文
关键词:
Addiction;Heroin;Abstinence period;Emotion;Perception bias
期刊:
Journal of behavior therapy and experimental psychiatry
ISSN:
0005-7916
年:
2012
卷:
43
期:
1
页码:
602-606
文献类别:
WOS:Article
所属学科:
ESI学科类别:精神病学/心理学;WOS学科类别:Psychiatry;Psychology, Clinical
入藏号:
WOS:000297083300012;PMID:21903045
机构署名:
本校为其他机构
院系归属:
教育科学与管理学院
摘要:
Background and objectives: Drug-dependent people exhibit biases when evaluating discrete emotional facial expressions. Little is known about how drug abusers process multiple expressions presented simultaneously. The present study investigated the number perception of schematic emotional expressions by abstinent heroin abusers. Methods: Eighty-four heroin abstainers with varied lengths of abstinence (short-term, mid-term, and long-term) and twenty healthy controls were examined. A method of limits was deployed to obtain estimates (points of subjective equality) of perceived numbers of schematic faces (expressing positive, neutral, or negative emotion). Results: Major results include the following: 1) heroin-abstinent participants showed significantly lower points of subjective equality for negative and neutral faces, but not for positive faces, compared to control participants: 2) heroin-abstinent participants showed lower points of subjective equality for negative faces and higher ones for positive faces when compared to neutral faces, while no such differences were found in control participants. Conclusion: Heroin abusers demonstrate an exaggerated perception of number when exposed to negative expressions, even after a period of abstinence as long as 10 months. In addition, the current results could also reflect an underestimated perception of number during exposure to positive expressions and a heightened baseline for neutral expressions, or the attribution of negative valence to neutral expressions by heroin abusers. (C) 2011 Elsevier Ltd. All rights reserved.
参考文献:
Baker TB, 2004, PSYCHOL REV, V111, P33, DOI 10.1037/0033-295X.111.1.33
Blair RJR, 2003, PHILOS T R SOC B, V358, P561, DOI 10.1098/rstb.2002.1220
Britton JC, 2006, NEUROIMAGE, V31, P906, DOI 10.1016/j.neuroimage.2005.12.050
Calder AJ, 2005, NAT REV NEUROSCI, V6, P641, DOI 10.1038/nrn1724
de Arcos FA, 2005, DRUG ALCOHOL DEPEN, V78, P159, DOI 10.1016/j.drugalcdep.2004.10.010

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