健康与遗传心理学研究室知识库

经颅电刺激(Transcranial Electrical Stimulation,TES)通过电极将特定模式的低强度电流作用于大脑头皮以调控皮层活动,是一种非侵入、无创的神经刺激方法。根据刺激电流的模式的不同,TES分为经颅直流电刺激(t DCS),经颅交流电刺激(t ACS)和经颅随机电刺激(t RNS)。TES能对视功能诸如光幻视阈值、视野、对比敏感度、视知觉运动等进行一定程度上的调控,并且能够与传统的视觉知觉学习训练相结合以调控视觉功能。对于不同的视觉功能,不同的TES参数和模式的调控效果有所不同。

Transcranial Electrical Stimulation (TES) is a non-invasive method of brain stimulation, which delivers a specific low intensity current on the scalp to modulate the activity of cortical cortex. TES is usually divided into three main types: transcranial direct current stimulation (tDCS), transcranial alternating current stimulation (tACS), and transcranial random noise stimulation (tRNS). In the current paper, we summarized the modulating effects of TES on visual phosphene threshold, visual field, contrast sensitivity, motion perception, and perceptual learning. The modulation effect varies with the type of visual functions, TES parameters, and stimulating patterns.