n. a type of biofeedback training intended to enable people to alter their brain waves by using information from a video display or auditory signal of electroencephalograph (EEG) recordings of their brain-wave characteristics. Neurofeedback has been used with mixed results in the treatment of attention-deficit/hyperactivity disorder and epilepsy and is being investigated as a possible intervention for other conditions as well (e.g., headaches, insomnia, anxiety). Also called EEG biofeedback; neurobiofeedback; neurotherapy. See alpha-wave training.