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Differences in learning rates for item and associative memories between amnestic mild cognitive impairment and healthy controls
Wang, Pengyun1,2; Li, Juan1; Li, Huijie1; Zhang, Shouzi3; Li, J (reprint author), Chinese Acad Sci, Inst Psychol, Ctr Aging Psychol, Key Lab Mental Hlth, 16 Lincui Rd, Beijing 100101, Peoples R China.
2013
Source PublicationBEHAVIORAL AND BRAIN FUNCTIONS
ISSN1744-9081
Subtype期刊论文
Volume9
Contribution Rank1
AbstractBackground: It has been established that the overall performance of associative memory was disproportionately impaired in contrast to item memory in aMCI (Amnestic mild cognitive impairment) patients, but little is known about the specific aspects of the memory process that show differences between aMCI and healthy controls. By comparing an item-item associative learning test with an individual item learning test, the present study investigated whether the rate of learning was slower in associative memory than in item memory in aMCI. Furthermore, we examined whether deficits in intertrial acquisition and consolidation contributed to the potential disproportionate impairments in the learning rate of associative memory for aMCI patients. In addition, we further explored whether the aMCI-discriminative power of the associative memory test increases more than that of the item memory test when the number of learning-test trials increases. Methods: A group of 40 aMCI patients and 40 matched control participants were administered a standardized item memory test (Auditory Verbal Learning Test, AVLT) and a standardized associative memory test (Paired Associative Learning Test, PALT), as well as other neuropsychological tests and clinical assessments. Results: The results indicated that the learning rate deficits in aMCI patients were more obvious for associative memory than for item memory and that the deficits resulted from impairments in both intertrial acquisition and consolidation. In addition, the receiver operating characteristic curve and logistical regression analysis revealed that the discriminative power of the associative memory test for aMCI was larger than that of the item memory test, especially with more than one learning-test trials. Conclusions: Due to more deficits in learning rate of associative memory than that of item memory, the discriminative power for aMCI tended to be larger in associative memory than in item memory when the number of learning-test trials increased. It is suggested that associative memory tests with multiple trials may be particularly useful for early detection of aMCI.
KeywordMild cognitive impairment Associative memory Item memory Learning rate
Subject AreaCognitive Psychology
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Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China [31271108, 30911120494, 31070916] ; Chinese Academy of Sciences [KSCX2-EW-J-8] ; CAS/SAFEA International Partnership Program for Creative Research Team [Y2CX131003] ; Institute of Psychology, Chinese Academy of Sciences [111000C038]
Project Intro.We thank Xin Huang, Bing Li, Xin Li, Xinyi Zhu, Tingji Chen, Jing Yu, Ting Zhou, for their help with data collection. This study was supported by the National Natural Science Foundation of China (31271108, 30911120494 and 31070916); the Knowledge Innovation Project of the Chinese Academy of Sciences (KSCX2-EW-J-8), the CAS/SAFEA International Partnership Program for Creative Research Team (Y2CX131003), and the Translational Research finding from Institute of Psychology, Chinese Academy of Sciences (111000C038).
WOS Research AreaBehavioral Sciences ; Neurosciences & Neurology
WOS SubjectBehavioral Sciences ; Neurosciences
WOS IDWOS:000323133200001
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordFREE-RECALL PERFORMANCE ; ALZHEIMERS-DISEASE ; SUBJECTIVE ORGANIZATION ; PROGRESSION ; ADULTS ; DECOMPOSITION ; INDIVIDUALS ; SENSITIVITY ; ACQUISITION ; DEMENTIA
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Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/10735
Collection中国科学院心理健康重点实验室
Corresponding AuthorLi, J (reprint author), Chinese Acad Sci, Inst Psychol, Ctr Aging Psychol, Key Lab Mental Hlth, 16 Lincui Rd, Beijing 100101, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Psychol, Ctr Aging Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100101, Peoples R China
3.Beijing Geriatr Hosp, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Pengyun,Li, Juan,Li, Huijie,et al. Differences in learning rates for item and associative memories between amnestic mild cognitive impairment and healthy controls[J]. BEHAVIORAL AND BRAIN FUNCTIONS,2013,9.
APA Wang, Pengyun,Li, Juan,Li, Huijie,Zhang, Shouzi,&Li, J .(2013).Differences in learning rates for item and associative memories between amnestic mild cognitive impairment and healthy controls.BEHAVIORAL AND BRAIN FUNCTIONS,9.
MLA Wang, Pengyun,et al."Differences in learning rates for item and associative memories between amnestic mild cognitive impairment and healthy controls".BEHAVIORAL AND BRAIN FUNCTIONS 9(2013).
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