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首页> 外文期刊>Neuroscience Letters: An International Multidisciplinary Journal Devoted to the Rapid Publication of Basic Research in the Brain Sciences >EEG gamma-band phase synchronization between posterior and frontal cortex during mental rotation in humans.
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EEG gamma-band phase synchronization between posterior and frontal cortex during mental rotation in humans.

机译：人类精神旋转过程中后皮质和额叶皮质之间的脑电图伽马波段相位同步。

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摘要

The main purpose of the present paper was: (1) to study the phase synchronization pattern in the gamma-band while performing the classical Shepard-Metzler task of mental rotation; (2) to investigate the role of musical training; and (3) to study hemispheric differences in the degree of synchronization during mental rotation. Multivariate electroencephalograph signals from 20 male subjects (ten musicians and ten non-musicians) were recorded while performing the mental rotation task and also at resting condition. Phase synchronization was measured by a recent index, mean phase coherence. It was found that synchronization between frontal cortex and right parietal cortex was significantly increased during mental rotation with respect to rest, whereby musicians showed significantly higher degrees of synchronization than non-musicians. Left hemispheric dominance in the degree of phase synchronization, stronger in the posterior right parietal and occipital regions, was observed in musicians. Right hemispheric dominance was generally observed in non-musicians.
机译：本文的主要目的是：（1）在执行经典的Shepard-Metzler心理旋转任务的同时研究伽玛波段的相位同步模式; （2）调查音乐训练的作用; （3）研究脑半球旋转时同步程度的半球差异。在执行精神旋转任务以及处于静止状态时，记录了来自20位男性受试者（十位音乐家和十位非音乐家）的多变量脑电图信号。相位同步通过最近的指标平均相位相干性来衡量。已发现，在精神旋转方面，相对于休息，额叶皮层和右顶叶皮层之间的同步性显着增强，从而音乐家显示出比非音乐家更高的同步度。在音乐家中，观察到左半球在相位同步度上的优势，在后顶壁和枕骨后部区域更强。在非音乐家中通常观察到右半球的优势。

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