Brain-Computer Interfaces (BCIs) allow interactions with a computer system by means of one’s brain activity. The most common type of BCIs measure the electrical activity of the brain through non-invasive electrodes. To build a BCI, a person is instructed to perform one or more mental actions (e.g. imagine you are moving your hand), after which an alogrith is trained to recognize the activity and then a computer system ties an assocaited physical action with a mental one. This system can be a wheelchair, a microwave or …a robot! Come and try it out!