Biofeedback systems are used for psychophysiological training and correction of various functional problems for patients with the wide spectrum of diseases affecting the neural, the locomotor and the cardiovascular systems of the body, as well as in case of psychoemotional problems. BFB training is used for correction, treatment, and training of various conditions. It can be used in the field of psychology to treat insomnia, attention concentration, relaxation and rest. In the field of neurology and during rehabilitation it can be used for patients with ICP, heavy head traumas, as well as those suffering from brain attacks, traumas, and injuries of the peripheral nerve stems. It can also be used in the field of cardiology to reduce the blood pressure, especially when it's caused by the high level of stress.