Figure 6.

Behavioral results for Experiment 2. A, Percentage freezing in the signaled FC task during training in context A, context extinction in context A, and tone extinction in context B. There were no group differences in any phase of the task. B, Exploration during the test phase of the 2D cxtSOR task. Both objects were familiar, but one was presented in an incongruent context (N) and the other in a congruent context (F). Shown are the discrimination ratio [left, DR = (N − F)/(N + F)], number of exploratory bouts (middle), and duration of exploratory bouts (right). The sham and ipsilateral groups showed discrimination, but the contralateral group did not. The sham and ipsilateral groups, but not the contralateral group, showed a greater number of exploration bouts for the novel object in context. The sham and contralateral groups also showed the expected longer duration of exploratory bouts. t test differences from zero were as follows: #p < 0.05, ###p < 0.001; rANOVA: *p < 0.05, ***p < 0.001. Error bars indicate ±SEM. Sample sizes for the sham, ipsilateral (ipsi), and contralateral (contra) groups were n = 8, 7, and 7, respectively.