Figure 5

Reduction in USVs after contextual fear conditioning. A, Representative traces for USVs produced before and 1 h, 1 day and 3 days after training. B, 30 kHz USVs during a 3 min exposure to the contextual environment before training and 1 h, 1, 3 (n = 17) and 7 (n = 5) days after. USVs are significantly decreased after training (p < 0.001) C, 30 kHz USVs produced in response to the context expressed as the percent reduction from the baseline rate. D, Representative traces for USVs produced in a novel environment with and without the tone for 1 h, 1 day and 3 days after training. E, 30 kHz USVs for 3 min in a novel context with and without the tone 1 h, 1, 3 (n = 17), and 7 (n = 5) days after training. USVs are significantly decreased at the tone 1 h (p < 0.05) and 1 day (p = 0.01) after training. F, 30 kHz USVs produced in response to the tone expressed as a percent reduction from USVs emitted in the novel chamber without the tone. Error bars represent S.E.M