Our laboratory studies the structure and function of mammalian cerebral cortex using novel methods of computerized brain mapping. We have developed an integrated suite of software tools for surface-based analyses of cerebral cortex. We have also developed surface-based atlases for studies of primate (human and macaque monkey) and rodent (rat and mouse) cerebral and cerebellar cortex that are accessible via the SumsDB database (http://sumsdb.wustl.edu/sums) and online visualization software. These atlases provide a substrate for a growing compendium of published experimental data that can be easily accessed and searched.