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Figure 1

From: Enhancement of extinction memory by pharmacological and behavioral interventions targeted to its reactivation

Figure 1

Extinction memory fails to suppress fear permanently. (A) Schematic representation of the experimental procedures. Fear conditioned rats were submitted to 30-min extinction session and were tested 24 hours later. A second test was conducted 7, 14, 21 or 28 days after test 1 (N = 6 /9 per group). (B) Freezing levels during extinction sessions. (C) Freezing levels during tests. (*) Significant difference between tests 1 and 2 (P < 0.05, Repeated-Measures ANOVA followed by Tukey’s post-hoc test).

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