Figure 3.
Effects of shock history and context exposure on conditioning and reconditioning. (A) Overview of the design of Experiment 3. The times listed represent the total time of exposure to the context for a given session. A “+” sign indicates a single 0.75 mA shock and a “−” sign indicates the exposure to the context without shock. (B) Mean percent freezing during extinction or context preexposure. (C) Mean percent freezing during the test. Tick marks on the X-axis reflect 6-min time blocks. (*) REC SAME vs. REC DIFF, P < 0.05. Error bars represent the standard error of the mean.
