Connectivity of fast PSPs from S1 cells to five followers. Data combined from all subareas of the S1 cluster. (A) Distribution of excitatory (+), inhibitory (−), and unconnected (0) S1 neurons to each follower, and in all followers combined. The number of connections sampled is shown below the name of the follower. (B) Net connectivity (average of all six measures per cell) from the S1 cluster to each of the five followers. Boxes show upper and lower quartiles. The line within the box is the median, and × is the mean. Note that outliers were present (see Hurwitz et al. 2024 for the full distributions) and were included in all calculations but are not shown in these figures for esthetic reasons. Dashed line at zero. Note the differences in net connectivity. (C) Amplitude of the EPSPs recorded in each follower. Note that the N for B3 is small (N = 8), reflecting the small number of excitatory connections to B3. (D) Amplitude of IPSPs recorded in each follower. Note that there were no IPSPs recorded from two followers, and that Ns are small for B8a/b and for B61/B62 (Number of IPSPs: for B3 N = 70; for B8a/b N = 16; for B61/B62 N = 8), reflecting the small number of inhibitory connections, as seen in A.
