Biometric Control

The use of measurable biological signals from the human body — such as brain waves (EEG), skin conductance (galvanic skin response), muscle electrical activity (EMG), heart rate, or eye movements — as input channels for controlling computers and assistive technology devices. Biometric control interfaces are particularly important for people with severe motor disabilities, including locked-in syndrome, where conventional input methods (keyboard, mouse, switch) and even eye tracking are not possible. These interfaces translate physiological changes, which may be voluntarily modulated through mental effort, emotional state, or selective attention, into computer commands.