MindAffect’s approach analyzes signals from the brain to determine what a user is looking at

the team has designed a brain-computer interface which uses existing electroencephalogram (or EEG) hardware and unique flashing patterns to allow a user to control a device using only their eyes and the signals generated by their brain.

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To accomplish this, MindAffect flashes each button on an interface (such as every key on an onscreen keyboard) at a different frequency. As the user shifts their gaze from button to button, the company says, the unique frequency the user sees causes their brain’s visual cortex to generate similarly unique signals. A non-invasive EEG headset detects and amplifies these signals, and MindAffect’s algorithms work backwards to match the signal to the desired action or input.