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
收藏
页码：2126 / 2129
页数：4
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