Neuromodulation EEG Neuromodulation is the process of modifying brain state via feedback-based training. By visualizing brain activity, the user can learn to modify it. Recent work provides evidence for the use of neuromodulatory therapy in the treatment of a variety of disorders. We provide a powerful neurofeedback software tool, Neurosurfer, compatible with our systems. Neurosurfer integrates EEG data, brain stimulation and immersive Virtual reality game all in one platform.