A new Brain-reading interface auto dialer system lets users make calls by thinking of the number—research that could prove useful for the severely disabled and beyond. Researchers created a way to place calls on cell phones using just your thoughts. Their new brain-computer interface is almost 100 percent accurate. The brain-reading computer interface system relies on electroencephalogram (EEG). Brain-reading interface auto dialer system was tested using wireless bluetooth module interfaced to a cell phone.

Brain-reading interface auto dialer system was developed by Tzyy-Ping Jung, a researcher at the Swartz Center for Computational Neuroscience at the University of California, and colleagues. Brain-reading interface auto dialer system relies on electroencephalogram (EEG) electrodes on the scalp to analyze electrical activity in the brain. An EEG headband is hooked up to a Bluetooth module that wirelessly sends the signals to a Nokia N73 cell phone, which uses algorithms to process the signals.

Brain Reading Auto Dialer SystemDuring the testing and demonstration of Brain-reading interface auto dialer system, 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. Jung and his colleagues exploited this by displaying a keypad on a large screen with each number flashing at a slightly different frequency. For instance, “1” flashed at nine hertz, and “2” at 9.25 hertz, and so on. Jung says this frequency can be detected through the EEG, thus making it possible to tell which number the subject is looking at.

The Neurophone used a brain signal known as the P300. This signal is triggered by a range of different stimuli and is used by other brain-control interfaces to gauge when something has caught a person’s attention. But this typically involves a longer training period.