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Inactivation of infralimbic cortex impairs extinction of platform-mediated avoidance. Inactivating IL with muscimol had no effect on within-session extinction of avoidance (D11), but impaired retrieval of extinction on day 12 (D12) and day 13 (D13; both drug free). Increased avoidance on these days was not accompanied by an increase in freezing. Data are shown in blocks of two trials (MUS, n = 11; SAL, n = 16). Arrows indicates infusion. *p < 0.05, Tukey's post hoc test.
