Prospective memory in schizophrenia: Further clarification of nature of impairment

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	Prospective memory in schizophrenia: Further clarification of nature of impairment
	Wang, Ya2,3 ; Chan, Raymond C. K.1,2,4 ; Hong, Xiaohong 5; Ma, Zheng 6; Yang, Tianxiao2 ; Guo, Lan 3; Yu, Xin 7; Li, Zhanjiang 6; Yuan, Yanbo 7; Gong, Qi-yong 8; Shum, David 9; R. C. K. Chan
摘要	Prospective memory (PM) refers to the ability to execute a delayed intention and is different from retrospective memory (RM) in its nature and underlying mechanism (e.g., intention formation, maintenance, detection of PM cue and intention execution). Although preliminary studies have found PM impairment in patients with schizophrenia, the nature and magnitude of this problem in this clinical group is not yet fully known. The current study aimed to further clarify the nature of this impariment in schizophrenia. Fifty-four patients with schizophrenia and fifty-four healthy volunteers matched on demographic variables, IQ and executive functions took part in the study. Time-, event-, and activity-based PM tasks and a set of neurocognitive tests were administered to the participants. Results showed that patients with schizophrenia performed significantly worse on all sub-types of PM tasks, even after controlling for neurocognitive functions such as working memory, verbal memory, visual memory, and executive function. These findings suggest PM deficit is a primary deficit rather than a secondary consequence of neurocognitive impairments in schizophrenia. Analysis found that PM deficits may be mainly due to the impairment of the cue detection and intention retrieval stage.; Prospective memory (PM) refers to the ability to execute a delayed intention and is different from retrospective memory (RM) in its nature and underlying mechanism (e.g., intention formation, maintenance, detection of PM cue and intention execution). Although preliminary studies have found PM impairment in patients with schizophrenia, the nature and magnitude of this problem in this clinical group is not yet fully known. The current study aimed to further clarify the nature of this impariment in schizophrenia. Fifty-four patients with schizophrenia and fifty-four healthy volunteers matched on demographic variables, IQ and executive functions took part in the study. Time-, event-, and activity-based PM tasks and a set of neurocognitive tests were administered to the participants. Results showed that patients with schizophrenia performed significantly worse on all sub-types of PM tasks, even after controlling for neurocognitive functions such as working memory, verbal memory, visual memory, and executive function. These findings suggest PM deficit is a primary deficit rather than a secondary consequence of neurocognitive impairments in schizophrenia. Analysis found that PM deficits may be mainly due to the impairment of the cue detection and intention retrieval stage. (c) 2008 Elsevier B.V. All rights reserved.
关键词	Schizophrenia Prospective memory Neurocognitive function Cue detection
学科领域	精神病学
	2008-10-01
语种	英语
发表期刊	SCHIZOPHRENIA RESEARCH
ISSN	0920-9964
卷号	105 期号:1-3 页码:114-124
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000260591900013
引用统计	被引频次：43[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/311026/5637
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	R. C. K. Chan
作者单位	1.Chinese Acad Sci, Inst Psychol, Neuropsychol & Appl Cognit Neurosci Lab, Beijing 100101, Peoples R China 2.Sun Yat Sen Univ, Dept Psychol, Neuropsychol & Appl Cognit Neurosci Lab, Guangzhou 510275, Guangdong, Peoples R China 3.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China 4.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China 5.Shantou Univ, Mental Hlth Ctr, Shantou, Peoples R China 6.Beijing Anding Hosp, Beijing, Peoples R China 7.Peking Univ, Inst Mental Hlth, Beijing 100871, Peoples R China 8.Sichuan Univ, W China Hosp, W China Sch Med, Dept Radiol,Huaxi MR Res Ctr, Chengdu 610064, Peoples R China 9.Griffith Univ, Griffith Inst Hlth & Med Res, Brisbane, Qld 4111, Australia
推荐引用方式 GB/T 7714	Wang, Ya,Chan, Raymond C. K.,Hong, Xiaohong,et al. Prospective memory in schizophrenia: Further clarification of nature of impairment[J]. SCHIZOPHRENIA RESEARCH,2008,105(1-3):114-124.
APA	Wang, Ya.,Chan, Raymond C. K..,Hong, Xiaohong.,Ma, Zheng.,Yang, Tianxiao.,...&R. C. K. Chan.(2008).Prospective memory in schizophrenia: Further clarification of nature of impairment.SCHIZOPHRENIA RESEARCH,105(1-3),114-124.
MLA	Wang, Ya,et al."Prospective memory in schizophrenia: Further clarification of nature of impairment".SCHIZOPHRENIA RESEARCH 105.1-3(2008):114-124.

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