研究人脑内外参考框架的整合:α和β波段在改进时间顺序判断任务中的作用。

IF 3.3 2区 医学 Q1 NEUROIMAGING
Xianhao Wei, Jian Zhang, Jinyan Zhang, Zimo Li, Qi Li, Jinglong Wu, Jingjing Yang, Zhilin Zhang
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引用次数: 0

摘要

人脑内外参照系的整合对于实现准确的触觉空间定位至关重要。然而,这种整合背后的机制尚未完全阐明。本研究采用一种改进的时间顺序判断范式和一种先进的加权相位滞后指数法来研究内外参照系整合时脑网络的相互作用。我们发现,当大脑整合内部和外部参考框架时,α振荡减少,β振荡增加,半球间连通性增加。具体而言,与匹配条件相比:第一,α波段振荡对处理内部参考帧失配起主要作用;第二,α和后期β波段振荡对处理外部参考帧失配起主要作用;第三,早期α和晚期β波段振荡是处理内外参考帧失配的主要原因。这些发现表明,α和β带的神经振荡在触觉空间定位中起着重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigating the Human Brain's Integration of Internal and External Reference Frames: The Role of the Alpha and Beta Bands in a Modified Temporal Order Judgment Task

Investigating the Human Brain's Integration of Internal and External Reference Frames: The Role of the Alpha and Beta Bands in a Modified Temporal Order Judgment Task

The integration of the internal and external reference frames of the human brain is crucial for achieving accurate tactile spatial localization. However, the mechanisms underlying this integration have yet to be fully elucidated. This study adopted a modified temporal order judgment paradigm with an advanced weighted phase lag index method to investigate brain network interactions when the internal and external reference frames were integrated. We found that when the brain integrated internal and external reference frames, alpha oscillations decreased, beta oscillations increased, and inter-hemispheric connectivity increased. Specifically, compared with the match condition: first, the alpha band oscillation predominantly contributed to processing the internal reference frame mismatch; second, the alpha and late beta band oscillation predominantly contributed to processing the external reference frame mismatch; third, the early alpha and late beta band oscillation predominantly contributed to processing the internal and external reference frame mismatch. These findings suggest that the neural oscillation of the alpha and beta bands plays an essential role in tactile spatial localization.

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来源期刊
Human Brain Mapping
Human Brain Mapping 医学-核医学
CiteScore
8.30
自引率
6.20%
发文量
401
审稿时长
3-6 weeks
期刊介绍: Human Brain Mapping publishes peer-reviewed basic, clinical, technical, and theoretical research in the interdisciplinary and rapidly expanding field of human brain mapping. The journal features research derived from non-invasive brain imaging modalities used to explore the spatial and temporal organization of the neural systems supporting human behavior. Imaging modalities of interest include positron emission tomography, event-related potentials, electro-and magnetoencephalography, magnetic resonance imaging, and single-photon emission tomography. Brain mapping research in both normal and clinical populations is encouraged. Article formats include Research Articles, Review Articles, Clinical Case Studies, and Technique, as well as Technological Developments, Theoretical Articles, and Synthetic Reviews. Technical advances, such as novel brain imaging methods, analyses for detecting or localizing neural activity, synergistic uses of multiple imaging modalities, and strategies for the design of behavioral paradigms and neural-systems modeling are of particular interest. The journal endorses the propagation of methodological standards and encourages database development in the field of human brain mapping.
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