Ross Pomeroy from Newton Blog published a post, "The Potential of Thought-Controlled Computing", that talks about the possibilities of being able to control computers with thoughts. A company called InteraXon has been working with the technology since 2007. The thought-controlled functions are achieved by using an electroencephalograph (EEG), which records brain activities. A specialized software is then used to identify the alpha wave frequencies and the beta wave frequencies. Alpha waves correlate with relaxation while beta waves correlate with focus and attentiveness. Computational tasks, like turning an electronic light switch on and off, can be achieved by merely focusing and relaxing. Theoretically, this technology can allow a person’s thoughts to control any appliance or device linked to that person’s head.