EEG (electroencephalography) biosignals are electrical signals generated by the brain that can be measured using specialized sensors and electrodes placed on the scalp. EEG analysis allows for real-time monitoring of brain activity, detecting states of concentration, relaxation, stress, and responses to stimuli.

In VR, AR, neurofeedback, medicine, and scientific research, EEG enables brain-computer interaction, device control, and the optimization of training and therapy. It is a powerful tool for studying brain activity and creating intelligent and personalized experiences using immersive technology.