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Effect of CHX administered 2 hr (2h) after re-exposure to the original learning context during day 3 and tested on day 4. Left, Behavioral protocols. All symbols and the protocol are as described in Figure 1C, except the treatment session given on day 3 and the test session on day 4. Ts, Test trial.Right, Test trial on day 3. Symbols are as described in Figure 1C. Asterisks are as in Figure 1.
