Brain Computer-Interfacing is a methodology that provides a way for communication with the outside environment using the brain thoughts. The success of this methodology depends on the selection of methods to process the brain signals in each phase. This paper aimed at addressing the various methodologies required to be adapted in each phase of brain signal processing. Prior to this survey, prev...

neurofeedback is a kind of biofeedback, which teaches self-control of brain functions to subjects by measuring brain waves and providing a feedback signal. neurofeedback usually provides the audio and or video feedback. positive or negative feedback is produced for desirable or undesirable brain activities, respectively. in this review, we provided clinical and technical information about the f...