10赫兹重复经颅磁刺激对前额眼场的调节基于特征的注意

Nianlin Li, Fuwu Yan, Lirong Yan, Yibo Wu, Biao Xiang
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引用次数: 0

摘要

额叶视野(FEF)是与基于视觉特征的注意(FBA)相关的重要脑区。在本研究中,我们采用10 hz重复经颅磁刺激(rTMS)对右侧FEF (rFEF)进行刺激,设计了一种带有两个属性(方向和颜色)的改进版注意网络测试(ANT),探讨rFEF与注意网络(包括警报、定向和执行控制网络)以及rFEF与视觉FBA之间的关系。24名健康受试者在刺激后完成了改良的ANT。以假刺激实验为对照组。实验结果表明,施加于rFEF的刺激对注意子网络的影响不显著。然而,rFEF作为额顶叶网络的一部分,在短暂的局部刺激后会影响额顶叶网络的相关连接,从而显著缩短被试的反应时间。此外,rFEF与可视化FBA任务中的属性选择密切相关,这一点已经得到证实。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
10-Hz Repetitive Transcranial Magnetic Stimulation over the Frontal Eye Field Modulates Feature-Based Attention
The frontal eye field (FEF) is an important brain area related to visual feature-based attention (FBA). In this study, we applied 10-Hz repetitive transcranial magnetic stimulation (rTMS) to the right FEF (rFEF), designed an improved version of attention network test (ANT) with two attributes (direction and color), to explore the relationship between rFEF and the attentional network (including alerting, orienting and executive control network) and between rFEF and visual FBA. 24 healthy subjects completed the improved ANT after stimulation. The sham stimulation experiment was set as the control group. The experimental results show that the stimuli applied to rFEF can not significantly affect the attention subnetwork. However, rFEF, as a part of the frontoparietal network, affects the relevant connections of the frontoparietal network after a short local stimulation, thereby significantly reducing the reaction time of the subjects. In addition, rFEF is closely related to attribute selection in visual FBA tasks, which has been confirmed.
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