Effects of Transcranial Direct Current Stimulation on Steady-State Visual Evoked Potentials

被引：0

作者：

Liu, Bingchuan ^{[1
]}

Chen, Xiaogang ^{[2
,3
]}

Yang, Chen ^{[1
]}

Wu, Jian ^{[4
]}

Gao, Xiaorong ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Med, Dept Biomed Engn, Beijing 100084, Peoples R China

[2] Chinese Acad Med Sci, Inst Biomed Engn, Tianjin 300192, Peoples R China

[3] Peking Union Med Coll, Tianjin 300192, Peoples R China

[4] Tsinghua Univ, Grad Sch Shenzhen, Inst Biomed Engn, Shenzhen 518055, Peoples R China

来源：

2017 39TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2017年

基金：

中国国家自然科学基金;

关键词：

CORTEX; SSVEP; EEG;

D O I：

暂无

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Recently, transcranial direct current stimulation (tDCS) has attracted increasing attention in the field of neuro-modulation because of its capacity to modulate cortical excitability noninvasively. Previous findings have demonstrated its effectiveness in visual studies. However, few studies have referred to steady-state visual evoked potential (SSVEP), a promising visual evoked potential that has been widely used in brain-computer interfaces. The present work investigated the effects of tDCS on SSVEPs. Sham and 1 mA real tDCS (anodal and cathodal) in a PO7-PO8 montage were administered for 15 min in 12 healthy subjects. Compared with sham conditions, both anodal and cathodal tDCS significantly decreased 7-Hz SSVEP power. Also, anodal tDCS increased 10-Hz SSVEP power. Our study demonstrated that tDCS over occipital areas altered brain activity evoked by visual stimuli.

引用

页码：2126 / 2129

页数：4

共 20 条

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