Stabilities of negative correlations between blood oxygen level-dependent signals associated with sensory and motor cortices
文献类型：期刊论文
| 作者 | Tian, Lixia; Jiang, Tianzi ; Liang, Meng; Li, Xiaobo; He, Yong; Wang, Kun; Cao, Bingli; Jiang, Tao
|
| 刊名 | HUMAN BRAIN MAPPING
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 28期号:7页码:681-690 |
| 关键词 | functional connectivity positive correlation resting state task-background |
| 英文摘要 | Compared with positive correlations, negative correlations of blood oxygen level-dependent (BOLD) signals (NCOBSs) have been much less studied. In most related studies, the NCOBSs have been accepted as stable without further consideration. To investigate the stabilities of NCOBSs associated with the auditory, motor, and visual cortices, we evaluated the negative correlation maps of each brain region under different "task-backgrounds" within the same subject-group, as well as within different subject-groups during a conscious resting state. These "task-backgrounds" refer to tasks not expected to activate the specific ROI under consideration and are in some sense analogous to "resting states." We found that the negative correlation maps of the motor and visual cortices were quite variable between either different task-backgrounds or different subject-groups, whereas those of the auditory cortex exhibited some similarities. These results indicate that the NCOBSs associated with the motor and visual cortices were unstable both under task-backgrounds and during the conscious resting state. The auditory cortex tended to have stable NCOBSs during these "resting states" (but scanner noise could make the auditory cortex "less resting"). This study highlights the importance of paying attention to the influence of the stabilities of NCOBSs in related studies and establishes the need for further studies on NCOBSs. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Neurosciences ; Neuroimaging ; Radiology, Nuclear Medicine & Medical Imaging |
| 研究领域[WOS] | Neurosciences & Neurology ; Radiology, Nuclear Medicine & Medical Imaging |
| 关键词[WOS] | FUNCTIONAL CONNECTIVITY ; COMPONENT ANALYSIS ; BRAIN-FUNCTION ; DEFAULT MODE ; CORTEX ; FMRI ; FLUCTUATIONS ; NETWORKS ; TASK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247685800011 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9427]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | 1.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China 2.McGill Univ, Montreal Neurol Inst, McConnell Brain Imaging Ctr, Montreal, PQ H3A 2T5, Canada 3.Capital Univ Med Sci, Beijing Tiantan Hosp, Dept Neurosurg, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Lixia,Jiang, Tianzi,Liang, Meng,et al. Stabilities of negative correlations between blood oxygen level-dependent signals associated with sensory and motor cortices[J]. HUMAN BRAIN MAPPING,2007,28(7):681-690. |
| APA | Tian, Lixia.,Jiang, Tianzi.,Liang, Meng.,Li, Xiaobo.,He, Yong.,...&Jiang, Tao.(2007).Stabilities of negative correlations between blood oxygen level-dependent signals associated with sensory and motor cortices.HUMAN BRAIN MAPPING,28(7),681-690. |
| MLA | Tian, Lixia,et al."Stabilities of negative correlations between blood oxygen level-dependent signals associated with sensory and motor cortices".HUMAN BRAIN MAPPING 28.7(2007):681-690. |
入库方式： OAI收割
来源：自动化研究所
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