Figure 1.
Corticothalamic and corticocortical cells in S1. A: Photomicrograph of retrogradely labeled cells in S1 following injections of red Retrobeads in S2 (all red Retrobeads here and elsewhere are shown in magenta). B: Photomicrograph of retrogradely labeled cells in S1 following injections of green Retrobeads in somatosensory thalamus. C: Overlay of A,B. Ci: Highlighted area in C magnified showing the lack of double-labeled cells. D,E: Photomicrographs of injection sites in S2 and POm/VPM, respectively.