Hippocampus's role in forming "task-related" associations: Flashing to the things you are looking for
Zhang XiuLing1; Kazuhisa, Niki2,3; Luo Jing1; J. Luo
2008-08-01
发表期刊CHINESE SCIENCE BULLETIN
ISSN1001-6538
文章类型Article
卷号53期号:16页码:2496-2505
摘要Eichenbaum and colleagues observed that the same place did or did not activate the "goal-approach" cells in hippocampus depending on whether the place was the way for rats to approach specific goal. Parallel with this, the present neuroimage study revealed that, the same type of items could activate the hippocampus more when it was related to the task at hand than when it not. Participants were scanned by fMRI while they made judgments on the type of relationships contained in the word-pairs (e.g., Does the word pair, "furniture-table", contain a "category-exemplar" relationship?). Event-related analysis revealed that the forming of "task-related" association activated hippocampus more than that of "task-unrelated", even if it was the same type of items, and, this hippocampal difference was not caused by the different judgment requirements, nor by the effects of "yes" response. Consistently, the post-judgment cued-recall test exhibited a better retrieval performance for "task-related" associations than for the same type but "task-unrelated" associations. Results also showed that, the semantic relatedness between the to-be-associated individual words (e.g., the related word pair "healthy-hospital" versus the unrelated word pair "price-way") was not enough to activate the hippocampus when it was "task-unrelated". Generally, we proposed that, through participating in forming of "task-related" associations and consolidating of episodic memory, hippocampus enabled the organism to keep the information that owned great survival values in mind for future usage.; Eichenbaum and colleagues observed that the same place did or did not activate the "goal-approach" cells in hippocampus depending on whether the place was the way for rats to approach specific goal. Parallel with this, the present neuroimage study revealed that, the same type of items could activate the hippocampus more when it was related to the task at hand than when it not. Participants were scanned by fMRI while they made judgments on the type of relationships contained in the word-pairs (e.g., Does the word pair, "furniture-table", contain a "category-exemplar" relationship?). Event-related analysis revealed that the forming of "task-related" association activated hippocampus more than that of "task-unrelated", even if it was the same type of items, and, this hippocampal difference was not caused by the different judgment requirements, nor by the effects of "yes" response. Consistently, the post-judgment cued-recall test exhibited a better retrieval performance for "task-related" associations than for the same type but "task-unrelated" associations. Results also showed that, the semantic relatedness between the to-be-associated individual words (e.g., the related word pair "healthy-hospital" versus the unrelated word pair "price-way") was not enough to activate the hippocampus when it was "task-unrelated". Generally, we proposed that, through participating in forming of "task-related" associations and consolidating of episodic memory, hippocampus enabled the organism to keep the information that owned great survival values in mind for future usage.
关键词event-related fMRI hippocampus "task-related" associations semantic relatedness
学科领域认知神经科学
收录类别SCI
语种英语
WOS记录号WOS:000258528600012
引用统计
被引频次:1[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/311026/5449
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者J. Luo
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
2.Natl Inst Adv Ind Sci & Technol, Neurosci Res Inst, Tokyo, Japan
3.JST, RISTEX, Tokyo, Japan
推荐引用方式
GB/T 7714
Zhang XiuLing,Kazuhisa, Niki,Luo Jing,et al. Hippocampus's role in forming "task-related" associations: Flashing to the things you are looking for[J]. CHINESE SCIENCE BULLETIN,2008,53(16):2496-2505.
APA Zhang XiuLing,Kazuhisa, Niki,Luo Jing,&J. Luo.(2008).Hippocampus's role in forming "task-related" associations: Flashing to the things you are looking for.CHINESE SCIENCE BULLETIN,53(16),2496-2505.
MLA Zhang XiuLing,et al."Hippocampus's role in forming "task-related" associations: Flashing to the things you are looking for".CHINESE SCIENCE BULLETIN 53.16(2008):2496-2505.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Zhang-2008-Hippocamp(934KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang XiuLing]的文章
[Kazuhisa, Niki]的文章
[Luo Jing]的文章
百度学术
百度学术中相似的文章
[Zhang XiuLing]的文章
[Kazuhisa, Niki]的文章
[Luo Jing]的文章
必应学术
必应学术中相似的文章
[Zhang XiuLing]的文章
[Kazuhisa, Niki]的文章
[Luo Jing]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。