Real-time fMRI-based neurofeedback reinforces causality of attention networks

被引：44
|
作者：
Lee, Jong-Hwan [1 ]
Kim, Junghoe [1 ]
Yoo, Seung-Schik [2 ]
机构：
[1] Korea Univ, Dept Brain & Cognit Engn, Seoul 136713, South Korea
[2] Harvard Univ, Sch Med, Dept Radiol, Brigham & Womens Hosp, Boston, MA 02115 USA
来源：
NEUROSCIENCE RESEARCH | 2012年 / 72卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Functional MRI (fMRI); Real-time fMRI; Granger causality; Neurofeedback; Auditory attention; Effective connectivity; GRANGER CAUSALITY; SELECTIVE ATTENTION; FUNCTIONAL MRI; HUMAN BRAIN; CONNECTIVITY; CORTEX; ACTIVATION; AREAS;
D O I：
10.1016/j.neures.2012.01.002
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
In this study, we investigated the efficacy of a real-time functional magnetic resonance imaging (rtfMRI)-based neurofeedback method for the modulation of the effective connectivity (EC) of causality between attention-related neuronal activities. In participants who received the feedback of attention-related neuronal activity, the EC estimated from Granger causality analysis was reinforced within the task-related network, such as between the bilateral cingulate gyri and frontal cortices, whereas the EC between the task-related network and task-unrelated resting-state network, including the inferior parietal lobule, was diminished. On the other hand, only marginal changes were observed in participants who received "sham" feedback. This "dynamic" characteristic measure of EC based on causality may be useful for evaluating the efficacy of methods designed to modulate brain networks, including rtfMRI-based neurofeedback (C) 2012 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.
引用
收藏
页码：347 / 354
页数：8
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