Volunteer Calibrating BCI (image) IOP Publishing Share Print E-Mail Caption This is a volunteer calibrating BCI. Credit (c) Korea University / TU Berlin Usage Restrictions Please use under CC BY SA 4.0. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.