Figure 7.
SVD delineates anatomical regions of the brain. The SVD was performed using the anterior/posterior differentially expressed subset of genes. The spatial patterns resulting from the first, second, third, and fourth PCs are shown. Alongside are the first 400 members of the corresponding gene vectors. The ordinate represents the contribution by the relevant gene to the variation of the vector spatial pattern, and the abscissa represents the genes in decreasing order of differential expression. The pseudocolor scales give the level of expression of the relevant gene vector in the spatial patterns.
