introduction -- Maturation processes in children and the motor factor -- Low grade defectives and the biological background for form and space -- Maturation in the primitive child -- Optic imagery and movement as the means of organizing representation -- Tachistoscopic phenomena and the temporal factor -- Sensory aphasia and the cerebral localization of the visual motor gestalt function -- The disturbances in visual motor gestalten in different types of organic brain disease -- Schizophrenia -- Manic depressive psychoses -- Standardization of the gestalt function in a performance test for children -- Mental defectiveness -- The gestalt function in malingering and in the Ganser syndrome -- The psychoneuroses