Figure 8.

Retrograde labeling of DLF neurons. Schematic dorsal view of retrograde labeling of Cut DLF axon bundles at the rostral S1 level are superimposed with the rostral face of a projected confocal image of a cross section cut through the S2 segment (the image consists of 2/8, 8 μm optical slices). The rectangular region delineated by dashed line in the upper cross sections is enlarged on the lower left panel to show more details of some of the labeled neurons. The 3D histogram on the lower right shows the segmental and laminar distribution of the labeled DLF neurons. The numbers of neurons are means of 11 labeling experiments. Calibration bars, 100 μm.