Soviet and Russian psychologist. One of the founders of engineering psychology and ergonomics in Russia. He experimentally investigated the processes of visual image formation, recognition and identification of image elements, and information preparation of decisions. He presented a version of the functional model of visual short-term memory, a model of the mechanisms of visual thinking as a component of creative activity. He developed a functional model of the structure of human objective action. He developed the doctrine of consciousness as a functional organ of the individual. His works made a significant contribution to the humanization of the world of work, especially in the field of information computer technologies, as well as to the humanization of the education system.