Fig. 2.

Adolescent social isolation strengthens the retention of fear memories. Fear memories for contextual training 14 and 28 days after training were increased in isolated mice (n = 12) compared with control mice (n = 10), without any changes in other days. Vertical bars represent the mean ± SEM. Asterisks indicate significant differences from the relevant controls (***p < 0.001, **p < 0.01, two-tailed)