Scientists showed that people could open doors or operate lights, a telephone, a small robot and even a robotic hand by wearing a strip of electrodes on their head to pick up brainwaves that signal "interest" and send them to a computer that interprets them as desired actions.
To demonstrate, one of the Santa Lucia team wore a fabric headset connected to the BCI and could open doors, switch on a fan or adjust lights by concentrating on a menu on a monitor. Two to three attempts are usually needed for each action.