Recent progress and outstanding issues in motion correction in resting state fMRI.

Recent progress and outstanding issues in motion correction in resting state fMRI.
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静止状态fMRI中的最新进展和运动校正问题。

DOI:
10.1016/j.neuroimage.2014.10.044
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发表时间:
2015-01-15
期刊:
影响因子:
5.7
通讯作者:
Petersen SE
Petersen SE
中科院分区:
医学1区
文献类型:
--
作者:
Power JD;Schlaggar BL;Petersen SE

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本文就静息态fMRI中运动伪影的研究进展作一综述。2011年,三个研究小组报告说,头部的微小运动会在大脑扫描中产生虚假但结构化的噪音,导致信号相关性的距离依赖性变化。这一发现促进了方法的发展和更严格的运动校正对先前发现的重新检查。自2011年以来,已经发表了十几篇专门针对静息状态fMRI中运动伪影的论文。我们将设法提炼这些论文的精华,使其达到最基本的内容。我们将指出一些容易或经常被忽视的运动伪影方面。在整个审查过程中,我们将强调现有知识的差距和未来研究的途径。
The purpose of this review is to communicate and synthesize recent findings related to motion artifact in resting state fMRI. In 2011, three groups reported that small head movements produced spurious but structured noise in brain scans, causing distance-dependent changes in signal correlations. This finding has prompted both methods development and the re-examination of prior findings with more stringent motion correction. Since 2011, over a dozen papers have been published specifically on motion artifact in resting state fMRI. We will attempt to distill these papers to their most essential content. We will point out some aspects of motion artifact that are easily or often overlooked. Throughout the review, we will highlight gaps in current knowledge and avenues for future research.
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