Austrian company Guger Technologies has developed a brain-computer interface that can be used to “type” short text messages simply by staring at letters on a screen. The system, called intendiX, consists of a tight-fitting skull cap fitted with electrodes, a brainwave amplifier, and a Windows application that analyzes and decodes the brainwaves. The interface could be used by people who are able to move only their eyes, allowing them to speak, or to send short messages to other computer systems, including social networks.”]
Source: https://www.csoonline.com/article/2127337/look–no-hands–g-tec-uses-brain-interface-to-tweet.html