Axonal Fiber Terminations Concentrate on Gyri

被引：93

作者：

Nie, Jingxin ^{[3
]}

Guo, Lei ^{[3
]}

Li, Kaiming ^{[1
,2
,3
]}

Wang, Yonghua ^{[4
]}

Chen, Guojun ^{[5
]}

Li, Longchuan ^{[6
]}

Chen, Hanbo ^{[1
,2
]}

Deng, Fan ^{[1
,2
]}

Jiang, Xi ^{[1
,2
]}

Zhang, Tuo ^{[1
,2
,3
]}

Huang, Ling ^{[7
]}

Faraco, Carlos ^{[2
,8
]}

Zhang, Degang ^{[2
,3
,9
]}

Guo, Cong ^{[10
]}

Yap, Pew-Thian ^{[11
]}

Hu, Xintao ^{[3
]}

Li, Gang ^{[3
]}

Lv, Jinglei ^{[3
]}

Yuan, Yixuan ^{[3
]}

Zhu, Dajiang ^{[1
,2
]}

Han, Junwei ^{[3
]}

Sabatinelli, Dean ^{[2
,8
]}

Zhao, Qun ^{[2
,9
]}

Miller, L. Stephen ^{[2
,8
]}

Xu, Bingqian ^{[5
]}

Shen, Ping ^{[4
]}

Platt, Simon ^{[12
]}

Shen, Dinggang ^{[11
]}

Hu, Xiaoping ^{[6
]}

Liu, Tianming ^{[1
,2
]}

机构：

[1] Univ Georgia, Dept Comp Sci, Athens, GA 30602 USA

[2] Univ Georgia, Bioimaging Res Ctr, Athens, GA 30602 USA

[3] Northwestern Polytech Univ, Sch Automat, Dept Automat Control, Xian 710072, Peoples R China

[4] Univ Georgia, Dept Cellular Biol, Athens, GA 30602 USA

[5] Univ Georgia, Fac Engn, Athens, GA 30602 USA

[6] Emory Univ, Dept Biomed Engn, Biomed Imaging Technol Ctr, Atlanta, GA 30322 USA

[7] Athens Tech Coll, Athens, GA 30601 USA

[8] Univ Georgia, Dept Psychol, Athens, GA 30602 USA

[9] Univ Georgia, Dept Phys, Athens, GA 30602 USA

[10] Univ Calif San Francisco, Dept Neurol, Memory & Aging Ctr, San Francisco, CA 94143 USA

[11] Univ N Carolina, Dept Radiol, Chapel Hill, NC 27599 USA

[12] Univ Georgia, Sch Vet Med, Dept Neurol, Athens, GA 30602 USA

来源：

CEREBRAL CORTEX | 2012年 / 22卷 / 12期

基金：

美国国家卫生研究院;

关键词：

cortical folding; diffusion tensor imaging; shape analysis; BRAIN; TRACKING; SURFACE; MODEL;

D O I：

10.1093/cercor/bhr361

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Convoluted cortical folding and neuronal wiring are 2 prominent attributes of the mammalian brain. However, the macroscale intrinsic relationship between these 2 general cross-species attributes, as well as the underlying principles that sculpt the architecture of the cerebral cortex, remains unclear. Here, we show that the axonal fibers connected to gyri are significantly denser than those connected to sulci. In human, chimpanzee, and macaque brains, a dominant fraction of axonal fibers were found to be connected to the gyri. This finding has been replicated in a range of mammalian brains via diffusion tensor imaging and high-angular resolution diffusion imaging. These results may have shed some lights on fundamental mechanisms for development and organization of the cerebral cortex, suggesting that axonal pushing is a mechanism of cortical folding.

引用

页码：2831 / 2839

页数：9

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