Phase-shifted tACS can modulate cortical alpha waves in human subjects.

IF 3.1 3区 工程技术 Q2 NEUROSCIENCES Cognitive Neurodynamics Pub Date : 2024-08-01 Epub Date: 2023-08-29 DOI:10.1007/s11571-023-09997-1
Alexandre Aksenov, Malo Renaud-D'Ambra, Vitaly Volpert, Anne Beuter
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Abstract

In the present study, we investigated traveling waves induced by transcranial alternating current stimulation in the alpha frequency band of healthy subjects. Electroencephalographic data were recorded in 12 healthy subjects before, during, and after phase-shifted stimulation with a device combining both electroencephalographic and stimulation capacities. In addition, we analyzed the results of numerical simulations and compared them to the results of identical analysis on real EEG data. The results of numerical simulations indicate that imposed transcranial alternating current stimulation induces a rotating electric field. The direction of waves induced by stimulation was observed more often during at least 30 s after the end of stimulation, demonstrating the presence of aftereffects of the stimulation. Results suggest that the proposed approach could be used to modulate the interaction between distant areas of the cortex. Non-invasive transcranial alternating current stimulation can be used to facilitate the propagation of circulating waves at a particular frequency and in a controlled direction. The results presented open new opportunities for developing innovative and personalized transcranial alternating current stimulation protocols to treat various neurological disorders.

Supplementary information: The online version contains supplementary material available at 10.1007/s11571-023-09997-1.

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相移 tACS 可以调节人体皮层阿尔法波。
在本研究中,我们研究了经颅交变电流刺激在健康受试者α频段诱发的行波。我们使用一种集脑电和刺激能力于一体的设备,记录了 12 名健康受试者在受到相移刺激之前、期间和之后的脑电数据。此外,我们还分析了数值模拟的结果,并将其与真实脑电图数据的相同分析结果进行了比较。数值模拟的结果表明,外加的经颅交变电流刺激会诱发旋转电场。在刺激结束后的至少 30 秒内,更频繁地观察到刺激诱发的电波方向,这表明刺激存在后遗效应。结果表明,建议的方法可用于调节大脑皮层远处区域之间的相互作用。非侵入性经颅交流电刺激可用于促进特定频率和受控方向的循环波传播。这些结果为开发创新的个性化经颅交变电流刺激方案治疗各种神经系统疾病提供了新的机遇:在线版本包含补充材料,可查阅 10.1007/s11571-023-09997-1。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Cognitive Neurodynamics
Cognitive Neurodynamics 医学-神经科学
CiteScore
6.90
自引率
18.90%
发文量
140
审稿时长
12 months
期刊介绍: Cognitive Neurodynamics provides a unique forum of communication and cooperation for scientists and engineers working in the field of cognitive neurodynamics, intelligent science and applications, bridging the gap between theory and application, without any preference for pure theoretical, experimental or computational models. The emphasis is to publish original models of cognitive neurodynamics, novel computational theories and experimental results. In particular, intelligent science inspired by cognitive neuroscience and neurodynamics is also very welcome. The scope of Cognitive Neurodynamics covers cognitive neuroscience, neural computation based on dynamics, computer science, intelligent science as well as their interdisciplinary applications in the natural and engineering sciences. Papers that are appropriate for non-specialist readers are encouraged. 1. There is no page limit for manuscripts submitted to Cognitive Neurodynamics. Research papers should clearly represent an important advance of especially broad interest to researchers and technologists in neuroscience, biophysics, BCI, neural computer and intelligent robotics. 2. Cognitive Neurodynamics also welcomes brief communications: short papers reporting results that are of genuinely broad interest but that for one reason and another do not make a sufficiently complete story to justify a full article publication. Brief Communications should consist of approximately four manuscript pages. 3. Cognitive Neurodynamics publishes review articles in which a specific field is reviewed through an exhaustive literature survey. There are no restrictions on the number of pages. Review articles are usually invited, but submitted reviews will also be considered.
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