Abstract: Methods of assigning quantitative phenotype measurement summary statistics to differential brain image information associated with neuropsychiatric disorders are provided. Summary statistics are correlated to genotype information to identify loci that correlate with differential brain image phenotypes. Methods of identifying modulators of genes at the loci are provided, as well as modulators identified by the methods. Systems for correlating polymorphisms and differential brain image phenotypes, for identifying modulators and for making correlations between differential brain activation phenotypes and genotypes are also providedaf.