Figure 4

Reduced arborization post-SCI of basal dendrites of large layer V pyramidal neurons in frontal motor-related areas. (a–d) Histograms showing the number of intersections of basal dendrites at every 10-µm position for the M1 (a), SMA (b), PMd (c), and PMv (d) in the normal control (in black) and SCI model (in red). Error bars denote SEM. Two-way ANOVA with the Tukey–Kramer method. *p < 0.05, **p < 0.01. (e) Histogram showing the total length of basal dendrites in the normal control (in white) and SCI model (in gray). (f) Correlations between the intersection number and the total length of basal dendrites in the M1 in the normal control (in black) and SCI model (in gray). (g) Histogram showing the decrease ratios of intersection number (in red) and total length (in blue) after SCI.