Figure 1.

Connectivity in the modified somatosensory thalamocortical slice preparation. (A) Raw FA image for anatomical reference in electrical experiments (B–E). (B) Electrical stimulation of CL and resulting cortical activation. (C) Electrical stimulation in VM and resulting cortical activation. (D) Electrical stimulation in VP and cortical activation. (E) POm electrical stimulation and cortical activation. (F) Raw FA image for anatomical reference in photostimulation experiments (G–I). (G) Cortical response to photostimulation of CL. (H) Photostimulation of VM and resultant activity in S1. Arrow indicates stimulation site here and in all other imaging figures. (I) Cortical response to photostimulation in VP. Arrows in the lower right inset of (A and F) are for orientation: D = Dorsal, M = Medial. Color bar at bottom of (I) represents values of ΔF/F corresponding to colors in panels (B–E and G–I). Color bar also applies to all FA colormap images in Fig. 2.