Four notable exceptions to this general pattern are: (1) mean higher h2SNP in the female group for GMV and SA but not CT; (2) two cortical regional phenotypes showing detectable deviation from rg = 1; (3) weak spatial correlations between sex-differences in anatomy and sex differences in h2SNP for CT, and lower rg values for SA; and, (4) preliminary evidence for a sex-specific relationship between neuroanatomy and common genetic variation mapping to RBFOX1 - a gene implicated in the neurobiology of several psychiatric disorders more common in one sex compared to the other. This evidence concerns the gene RBFOX1 and psychiatric disorder.