Sustained activity within the default mode network during an implicit memory task
文献类型：期刊论文
| 作者 | Yang, Jionjiong1; Weng, Xuchu2 ; Zang, Yufeng3; Xu, Mingwei2; Xu, Xiaohong1
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| 刊名 | CORTEX
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| 出版日期 | 2010-03-01 |
| 卷号 | 46期号:3页码:354-366 |
| 通讯作者邮箱 | yangjj@pku.edu.cn |
| 关键词 | Default mode network Unconscious processing Implicit memory |
| ISSN号 | 0010-9452 |
| 产权排序 | 2 |
| 通讯作者 | Jiongjiong Yang |
| 英文摘要 | Recent neuroimaging studies have shown that several brain regions - namely, the posterior cingulate cortex (PCC), ventral medial prefrontal cortex (vmPFC), and the bilateral angular gyrus - are more active during resting states than during cognitive tasks (i.e., default mode network). Although there is evidence showing that the default mode network is associated with unconscious state, it is unclear whether this network is associated with unconscious processing when normal human subjects perform tasks without awareness. We manipulated the level of conscious processing in normal subjects by asking them to perform an implicit and an explicit memory task, and analyzed signal changes in the default mode network for the stimuli versus baseline in both tasks. The functional magnetic resonance imaging (fMRI) analysis showed that the level of activation in regions within this network during the implicit task was not significantly different from that during the baseline, except in the left angular gyrus and the insula. There was strong deactivation for the explicit task when compared with the implicit task in the default mode regions, except in the left angular gyrus and the left middle temporal gyrus. These data suggest that the activity in the default network is sustained and less disrupted when an implicit memory task is performed, but is suspended when explicit retrieval is required. These results provide evidence that the default mode network is associated with unconscious processing when human subjects perform an implicit memory task. (c) 2009 Elsevier Srl. All rights reserved. |
| 学科主题 | 认知心理学 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275146500009 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/13752]  |
| 专题 | 心理研究所_中国科学院心理研究所回溯数据库(1956-2010) |
| 作者单位 | 1.Peking Univ, Dept Psychol, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China 3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jionjiong,Weng, Xuchu,Zang, Yufeng,et al. Sustained activity within the default mode network during an implicit memory task[J]. CORTEX,2010,46(3):354-366. |
| APA | Yang, Jionjiong,Weng, Xuchu,Zang, Yufeng,Xu, Mingwei,&Xu, Xiaohong.(2010).Sustained activity within the default mode network during an implicit memory task.CORTEX,46(3),354-366. |
| MLA | Yang, Jionjiong,et al."Sustained activity within the default mode network during an implicit memory task".CORTEX 46.3(2010):354-366. |
入库方式： OAI收割
来源：心理研究所
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