the subventricular neurogenic niche. For some modules, the importance of gene coexpression relationships will require further investigation. For example, our results suggest that coexpression in M13A may relate to the migration and assimilation of immature interneurons in adult cerebral cortex. It is interesting to note that the two samples with the highest expression levels for genes in this module were taken from Brodmann area 11. This area includes the gyrus rectus, which forms the medial boundary of the olfactory sulcus and abuts the putative rostral migratory stream that has recently been described in humans47.
