Figure 2.

Impact of age/age at pretraining on avoidance learning. The left graphs show results for females, the right graphs for males. The left part of each graph summarizes the effect of age on the number of avoidances (A,B), escapes (C,D), and failures (E,F) and escape latencies (G,H) (mean ± s.e.m.). The letters indicate significant differences between the young age groups. The right part of each graph summarizes the effect of age at pretraining on adult active avoidance learning. The letters indicate significant differences between the pretrained groups and naive adults. a: p < 0.05 infants vs. preadolescents; b: p < 0.05 infants vs. adolescents; c: infants vs. late adolescents; d: p < 0.05 preadolescents vs. adolescents; e: p < 0.05 preadolescents vs. late adolescents; f: p < 0.05 adolescents vs. late adolescents; w: p < 0.05 pretrained as infants vs. naives; x: p < 0.05 pretrained as preadolescents vs. naives; y: p < 0.05 pretrained as adolescents vs. naives; z: p < 0.05 pretrained as late adolescents vs. naives.