An appetitive conditioned stimulus enhances fear acquisition and impairs fear extinction

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Figure 4.
Figure 4.

Results of Experiment 4. The mean percentage of time spent in magazine on the final trials of Stage 1 appetitive conditioning to conditioned stimuli (CSs) A, B, C, and D and in the 30-sec pre-CS periods (A). The mean percentage of freezing during Stage 3 test to the AD and BC compounds and in the 30-sec pre-CS periods (B).

This Article

  1. Learn. Mem. 23: 113-120

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