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Using motion sensors, brain signals and a heap of creativity, several new technologies promise to do away with cramped typing fingers, videogame-fried eyes and hoarse phone voices. This past summer in Tokyo, for instance, a paralyzed man with electrodes attached to his head took his Second Life avatar on a virtual walk just by envisioning his character strolling. Engineers at a biotech start-up in Illinois are now testing a neck device that allows mute people to speak by intercepting nerve signals en route to the vocal cords, and a team of grad students at the Massachusetts Institute of Technology has devised a Wii-mote-controlled PC game for the blind.

Scientists already have the know-how to make mind control a reality. The rest is engineering, says Rodney Brooks, a roboticist at MIT. “It’s only a matter of time before it will be normal for people to interface with the virtual world using direct connections to their brain,” he predicts. “We’ll be able to activate any of our machines just by thinking about it.” It’s a nifty idea for all of mankind, but even more so for those who struggle to talk, walk, and see. Click here to see the top notable mind-control devices making headlines.

Eyeball Remote: What Is It

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An eye-gaze interface that lets you control your music player, camera or cellphone by rolling your eyes. Skip through tracks by looking right twice.
Eyeball Remote: Who Makes It

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Japanese telecom company NTT Docomo. Engineers demoed a prototype of the device in June.
Headphones equipped with electrodes

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Headphones equipped with electrodes read electrical signals generated by eyeball movement and translate them into basic controls.
head-mounted camera

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A head-mounted camera allows you to snap pictures with the blink of an eye.
lightweight wireless neck device

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A lightweight wireless neck device that helps people with speech disorders talk
Ambient

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Ambient, a biotech start-up in Champaign, Illinois. The company plans to begin selling the device next month.
Computer Speech

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The device adheres to the skin above the voicebox. It reads nerve signals and sends them via Bluetooth to a computer synthesizer, which processes them into audible speech.
rigged wheelchair

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The same tech can be used to let people with speech disorders talk on the phone or help paralysis patients operate a rigged wheelchair.
brain interface

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A brain interface that lets people with muscle disorders, spinal-cord injuries or serious carpal-tunnel syndrome control a keyboard just by thinking about it
Researchers at Keio University in Japan

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Researchers at Keio University in Japan. The team helped a paralysis patient take the world’s first online virtual walk last May.
Second Life

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Electrodes intercept brain signals that control limb movement and send them to a laptop. The computer translates the signals into keyboard commands to let users move their Second Life avatar.
Second Life

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The kit is completely portable. Shopping and socializing in Second Life are also possible using a mic and mouse.
Sightless Gaming

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A gaming alternative to Guitar Hero and Rock Band for blind people that rewards listening and dance-floor skills instead of hand-eye coordination
Singapore–MIT Gambit Game Lab

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The Singapore–MIT Gambit Game Lab. The PC-based Flash video-game is available as a free download on MIT’s Web site.
DJ tracks

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Players layer DJ tracks on the computer and rhythmically shake a Wii-mote to make increasingly complicated beats.
Sightless Gaming

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Advanced players can generate their own sound effects in “Freestyle” mode. Read more about tomorrow’s no-hands-required technologies in “The Hands-Free Future”.