Prefrontal-Related Functional Connectivities within the Default Network Are Modulated by COMT val(158)met in Healthy Young Adults | |
Liu, Bing1![]() ![]() ![]() ![]() | |
刊名 | JOURNAL OF NEUROSCIENCE
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2010-01-06 | |
卷号 | 30期号:1页码:64-69 |
英文摘要 | Previous studies have supported the concept that the default network is an intrinsic brain system that participates in internal modes of cognition. Neural activity and connectivity within the default network, which are correlated with cognitive ability even at rest, may be plausible intermediate phenotypes that will enable us to understand the genetic mechanisms of individuals' cognitive function or the risk for genetic brain diseases. Using resting functional magnetic resonance imaging and imaging genetic paradigms, we investigated whether individual default network connectivity was modulated by COMT val(158)met in 57 healthy young subjects. Compared with COMT heterozygous individuals, homozygous val individuals showed significantly decreased prefrontal-related connectivities, which primarily occurred between prefrontal regions and the posterior cingulate/restrosplenial cortices. Further analyses of the topological characteristics of the default network showed homozygous val individuals had significantly fewer node degrees in the prefrontal regions. This finding may partially elucidate previous reports that the COMT val variant is associated with inefficient prefrontal information processing and poor cognitive performance. Our findings suggest that default network connectivity that involves the prefrontal cortex is modulated by COMT val(158)met through differential effects on prefrontal dopamine levels. |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Neurosciences |
研究领域[WOS] | Neurosciences & Neurology |
关键词[WOS] | CATECHOL-O-METHYLTRANSFERASE ; WORKING-MEMORY ; BRAIN ACTIVITY ; SCHIZOPHRENIA ; POLYMORPHISM ; EXPRESSION ; DOPAMINE ; GENOTYPE ; ARCHITECTURE ; ASSOCIATION |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000273347300007 |
内容类型 | 期刊论文 |
源URL | [http://ir.ia.ac.cn/handle/173211/3131] ![]() |
专题 | 自动化研究所_脑网络组研究中心 |
作者单位 | 1.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, LIAMA Ctr Computat Med, Beijing 100190, Peoples R China 2.Capital Med Univ, Xuanwu Hosp, Dept Radiol, Beijing 100053, Peoples R China 3.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Minist Educ, Key Lab NeuroInformat, Chengdu 610054, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Bing,Song, Ming,Li, Jun,et al. Prefrontal-Related Functional Connectivities within the Default Network Are Modulated by COMT val(158)met in Healthy Young Adults[J]. JOURNAL OF NEUROSCIENCE,2010,30(1):64-69. |
APA | Liu, Bing.,Song, Ming.,Li, Jun.,Liu, Yong.,Li, Kuncheng.,...&Jiang, Tianzi.(2010).Prefrontal-Related Functional Connectivities within the Default Network Are Modulated by COMT val(158)met in Healthy Young Adults.JOURNAL OF NEUROSCIENCE,30(1),64-69. |
MLA | Liu, Bing,et al."Prefrontal-Related Functional Connectivities within the Default Network Are Modulated by COMT val(158)met in Healthy Young Adults".JOURNAL OF NEUROSCIENCE 30.1(2010):64-69. |
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