Figure 2.

Enhanced retention of rats that received immediate post-training NE infusions into the BLA for Y-maze CFC. Groups are as follows (from left to right): vehicle shock (white bars; n = 10), 0.3 μg NE shock (hatched bars; n = 8), 1.0 μg NE shock (black bars; n = 10), vehicle no shock (white bars; n = 7), and 1.0 μg NE no shock (black bars; n = 10). A, Mean percentage of time (± SEM) spent freezing during the 8 min retention test on day 3. B, Mean latencies (± SEM), in seconds, to first entry into the shock arm during retention test. C, Mean latencies without freezing (± SEM), in seconds, during the 8 min retention test on day 3. ^*p < 0.005 compared with shocked vehicle controls and both no-shock controls.