G.I. Shulgina - Dr.Sc. (Biol.), Leading Research Scientist, Institute of Higher Nervous Activity and Neurophysiology of RAS, Moscow, Russia, Professor of Faculty of Psychology, State Academy of Slavic Culture, Moscow, Russia. E-mail: shulgina28@mail.ru А.А. Frolov - Dr.Sc. (Biol.), Ph.D. (Phis.-Math.), Chief Research Scientist, Head of Laboratory of Mathematical Neuroscience Learning, Institute of Higher Nervous Activity and Neurophysiology of RAS, Moscow, Russia. Е-mail: aafrolov@mail.ru