The motor cortex is the easiest thing to read via eeg that is consciously accessible. Any time you move or think of moving, it's activated. It's very easy to di

The motor cortex is the easiest thing to read via eeg that is consciously accessible. Any time you move or think of moving, it's activated. It's very easy to distinguish left side activation from right side activation, but much harder to determine whether you moved your left arm or leg. They use finger as a demonstration of sensitivity, but unless something has radically changed, finger discrimination from outside the skull is probably impossible, which is probably the reason it's a dress and not, say, a robotic exoskeleton.