Figure 4.

Experiment 2. At 7 days after injury, both SCI and TX treated groups exhibited poor learning that suggests the development of maladaptive plasticity (A,B). Both groups received comparable levels of stimulation (E,F). (A,E) depict group averages for each 60 s bin over the 30 min testing period. Group means (+ SEM) derived from individual scores over the entire 30 min testing period are depicted in (B) and (D). Only rats that recovered for 42 days in the presence of spared fibers (SCI) exhibited superior learning (C,D). The 42 day TX group exhibited poor learning shown by significantly lower response duration (C,D) and significantly more shock exposure compared to the SCI group (G,H). Error bars indicate the standard error of the mean. *p < 0.05.