Article contains an attempt to consider a place of the Theory of functional systems in the solution of problems of psychology. The system of representations and the terms accepted in the Theory of functional systems, system of ideas of activity of neurons, operational very tectonics are generalized and described. The conclusion is drawn that the Theory of functional systems can't be until or accepted for the solution of problems of psychology. For today the methodological problem is solved only by application of integrated approach.

Keywords: The integral approach; the system approach; system psychophysiology; the theory of functional systems; the system-evolutionary theory; functional systems.