QUANTA

Thursday, April 14, 2011


Dialing the phone with your mind

April 13, 2011

Researchers at the Swartz Center for Computational Neuroscience at the University of California, San Diego, have developed a brain-control interface that lets users make calls by thinking of the phone number.

The system relies on electroencephalogram (EEG) electrodes on the scalp to analyze electrical activity in the brain. An EEG headband is connected to a Bluetooth module that wirelessly sends the signals to a Nokia N73 cell phone, which uses algorithms to process the signals.

Participants were trained on the system via a novel visual feedback system. They were shown images on a computer screen that flashed on and off almost imperceptibly at different speeds. These oscillations can be detected in a part of the brain called the midline occipital.

The researchers claim that the new brain-control interface is almost 100 percent accurate for most people after the initial training period.


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