Extension of Quantifiable Modification of sLORETA for Induced Oscillatory Changes in Magnetoencephalography.

Q4 Medicine
Open Neuroimaging Journal Pub Date : 2012-01-01 Epub Date: 2012-06-15 DOI:10.2174/1874440001206010037
Takehiro Uda, Naohiro Tsuyuguchi, Eiichi Okumura, Yoshihito Shigihara, Takashi Nagata, Yuzo Terakawa, Shinichi Sakamoto, Kenji Ohata
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引用次数: 0

Abstract

Quantifiable modification of standardized low-resolution brain electromagnetic tomography (sLORETA-qm), which is one of the non-adaptive beamformer spatial filtering techniques, has been applied to source localization and quantification of evoked field or oscillatory changes in magnetoencephalography (MEG). Here, we extended this technique to induced oscillatory brain activity changes, so-called event-related desynchronization or event-related synchronization. For localizing of significantly activated brain areas at the whole-brain level, permutation tests and multiple comparison corrections with false discovery rate were applied. Induced β- and γ-band oscillatory changes by right hand clenching task were demonstrated as an example of simple induced brain activity.

Abstract Image

Abstract Image

Abstract Image

脑磁图诱导振荡变化的可量化修正的扩展。
标准化低分辨率脑电磁断层成像(sLORETA-qm)是一种非自适应波束形成空间滤波技术,已被应用于脑磁图(MEG)诱发场或振荡变化的源定位和量化。在这里,我们将这项技术扩展到诱发振荡性大脑活动变化,即所谓的事件相关去同步或事件相关同步。为了在全脑水平上定位显著激活的大脑区域,使用了排列测试和带有错误发现率的多次比较校正。右手握紧任务诱导的β和γ波段振荡变化是简单的脑活动诱导的例子。
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来源期刊
Open Neuroimaging Journal
Open Neuroimaging Journal Medicine-Radiology, Nuclear Medicine and Imaging
CiteScore
0.70
自引率
0.00%
发文量
3
期刊介绍: The Open Neuroimaging Journal is an Open Access online journal, which publishes research articles, reviews/mini-reviews, and letters in all important areas of brain function, structure and organization including neuroimaging, neuroradiology, analysis methods, functional MRI acquisition and physics, brain mapping, macroscopic level of brain organization, computational modeling and analysis, structure-function and brain-behavior relationships, anatomy and physiology, psychiatric diseases and disorders of the nervous system, use of imaging to the understanding of brain pathology and brain abnormalities, cognition and aging, social neuroscience, sensorimotor processing, communication and learning.
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