Figure 1.
Controllable stress does not mitigate the impact of stress on shock-elicited freezing and shuttle box escape. Subjects received escapable shock (ES), inescapable shock (IS), or home cage control (HC) followed by behavioral testing 24 h later. (A) Percent freezing, in 2 min blocks, immediately following 2 foot shocks in a shuttle box. (B) Shuttle box escape latencies across blocks of five FR-2 escape trials. (C) Number of FR-1 and FR-2 escape failures. Data are mean (± SEM), *p < 0.05 compared to HC.