Computer-generated 3-D reconstruction from case D51, after injection of BDA and FR into SI whisker barrels located in different rows (A). The clusters of labeling are confined within a single lamellar pontine subspace (B: ventral view), and black dots are located predominantly more rostrally and dorsally than red dots (B: ventral view, C: slices 60 - 80, D: slices 60 - 70).