Neurofeedback, also called Neurotherapy or Neurobiofeedback, is a type of biofeedback that uses real-time displays of brain activity, most commonly electroencephalography (EEG), to teach self-regulation of brain function. Neurofeedback has proven through many scientific studies to help patients with brain-related issues. It is a non-invasive, no side effects and drug-free therapy, with remarkable results. Typically, sensors are placed on the scalp to measure activity, with measurements displayed using video displays or sound.