The Effects of 10 Hz Transcranial Alternating Current Stimulation on Audiovisual Task Switching.

ABSTRACT: Neural oscillations in the alpha band (7-13 Hz) are commonly associated with disengagement of visual attention. However, recent studies have also associated alpha with processes of attentional control and stability. We addressed this issue in previous experiments by delivering transcranial alternating current stimulation at 10 Hz over posterior cortex during visual tasks (alpha tACS). As this stimulation can induce reliable increases in EEG alpha power, and given that performance on each of our visual tasks was negatively associated with alpha power, we assumed that alpha tACS would reliably impair visual performance. However, alpha tACS was instead found to prevent both deteriorations and improvements in visual performance that otherwise occurred during sham & 50 Hz tACS. Alpha tACS there

SUBMITTER: Clayton MS 

PROVIDER: S-EPMC5816909 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature