Cheap Brainwave Control

Cheap EEG/EMG headsets are coming into the market, principally designed as gaming interfaces. However, they might enable interesting research as well -- such as technology mediated telepathy. You can buy off-the-shelf systems now for as little as $600 from CyberLearning, for instance.

"But the price and size of EEG hardware is shrinking. NeuroSky's "dry-active" sensors don't require gel, are the size of a thumbnail, and could be put into a headset that retails for as little as $20, said NeuroSky CEO Stanley Yang.

Yang is secretive about his company's product lineup because of a nondisclosure agreement with the manufacturer. But he said an international toy manufacturer plans to unveil an inexpensive gizmo with an embedded NeuroSky biosensor at the Japan Toy Association's trade show in late June. A U.S. version is scheduled to debut at the American International Fall Toy Show in October.

"Whatever we sell, it will work on 100 percent or almost 100 percent of people out there, no matter what the condition, temperature, indoor or outdoors," Yang said. "We aim for wearable technology that everyone can put on and go without failure, as easy as the iPod."

Researchers at NeuroSky and other startups are also building prototypes of toys that use electromyography (EMG), which records twitches and other muscular movements, and electrooculography (EOG), which measures changes in the retina."