MOTOR EXECUTION AND MOTOR IMAGERY: A COMPARISON OF FUNCTIONAL CONNECTIVITY PATTERNS BASED ON GRAPH THEORY

被引：50
|
作者：
Xu, L. [1 ]
Zhang, H. [2 ,3 ]
Hui, M. [4 ]
Long, Z. [4 ]
Jin, Z. [5 ]
Liu, Y. [3 ]
Yao, L. [1 ,4 ]
机构：
[1] Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China
[2] Chinese Acad Sci, Shenzhen Inst Adv Technol, Paul C Lauterbur Res Ctr Biomed Imaging, Shenzhen 518055, Peoples R China
[3] Peking Univ, Dept Biomed Engn, Beijing 100871, Peoples R China
[4] Beijing Normal Univ, Natl Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
[5] 306th Hosp PLA, Lab Magnet Resonance Imaging, Beijing 100101, Peoples R China
来源：
NEUROSCIENCE | 2014年 / 261卷
基金：
中国国家自然科学基金;
关键词：
motor execution; motor imagery; functional connectivity; betweenness centrality; key nodes; RESTING-STATE; ANATOMICAL CONNECTIVITY; PREMOTOR CORTEX; NEURAL-NETWORKS; BRAIN; ORGANIZATION; MODULATION; ACTIVATION; CENTRALITY; MOVEMENTS;
D O I：
10.1016/j.neuroscience.2013.12.005
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
Motor execution and imagery (ME and MI), as the basic abilities of human beings, have been considered to be effective strategies in motor skill learning and motor abilities rehabilitation. Neuroimaging studies have revealed several critical regions from functional activation for ME as well as MI. Recently, investigations have probed into functional connectivity of ME; however, few explorations compared the functional connectivity between the two tasks. With betweenness centrality (BC) of graph theory, we explored and compared the functional connectivity between two finger tapping tasks of ME and MI. Our results showed that using BC, the key node for the ME task mainly focused on the supplementary motor area, while the key node for the MI task mainly located in the right premotor area. These results characterized the connectivity patterns of ME and MI and may provide new insights into the neural mechanism underlying motor execution and imagination of movements. (C) 2013 IBRO. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：184 / 194
页数：11
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