Figure 4.

LSPS of Caged Glutamate Reveals a Developmental Rearrangement in the Spatial Organization of GABAergic Inputs onto S1BF L4 SSNs in the Early Postnatal Brain

(A) Total columnar GABAergic synaptic input onto L4 SSNs through development. Values correspond to the total sum amplitude of LSPS-evoked GABAergic inputs onto SSNs; boxplots as in Figure 2 (K-W test, ^∗∗p = 0.016, H[2,49] = 8.25; Dunn).

(B) Remodeling of GABAergic inputs onto SSNs through development; plotted as for Figure 3B.

(C) Laminar organization of GABAergic input onto SSNs. Between P4–P6 and P10–P15, L5b input decreases (K-W test ^∗∗p = 0.004, H[3,52] = 18.7; Dunn), while L4 and L2/3 input increases (L4, K-W test, ^∗p = 0.011, H[2,49] = 23.0, Dunn; L2/3, Kruskal-Wallis test ^∗p < 0.028, H[3,52] = 24.5, Dunn).

(D) Average maps of GABAergic synaptic input onto SSNs through early development; alignment as in Figure 3D.