 Oskar Vogt's own scientific achievements also were in the field of cortical cytoarchitectonics and myeloarchitectonics.In the 1920s Oskar Vogt became interested in the potential morphological correlates of mental abilities, and hence in the neuroanatomical study of 'elite brains'.When Lenin died of a brain hemorrhage in 1924, his brain was preserved in formaldehyde, where it remained for two years.