Confocal immunofluorescence photomicrographs of sections of the ipsilateral LSC of mice 7 days after PNA (A–C), 10 days after SNA (D–I), ipsilateral (J–L) or contralateral to a sham-PNA (M–O), incubated with VGLUT2 (A, D, G, J, M) and ATF-3 (B, E, H, K, N) antisera (C, F, I, L, O show merged images). (D–I; G–H show a magnified view of the box in F). Double arrowheads in (A, G, J, M, B, H, K, N, C, I, L, O) and arrows in (B, H, K) show VGLUT2/ATF-3 or ATF-3-only neurons, respectively. Scale bars: 20 µm (C=A, B; F=D, E; I=G, H; L=J, K; O=M, N).