FIG. 4.

Beam walking. (A) Baseline beam score for rat #112 (orange filled circle) was 5.3 (rest of cohort mean ± SEM, 5.6 ± 0.1). On D30 post-TBI, rat #112 was the only rat with a score of 0 on the beam. (B) At baseline, rat #112 needed 6.3 sec (rest of cohort mean ± SEM, 16.4 ± 3.7) to cross the beam. On D30, rat #112 showed a complete loss of balance. Statistical significance: ***p < 0.001, compared with the corresponding baseline value (Wilcoxon's signed-rank test). Data are presented as whisker plots from minimum to maximum. D, day; SEM, standard error of the mean; TBI, traumatic brain injury.