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Extinction with LVGCC blockers is not state dependent. A, Experimental design (7–8 mice per group). The 3 d experiment was identical to previous experiments (Figs. 5, 6), with the exception that drugs and vehicle were injected 20 min before both day 2 extinction and the day 3 test.B, Freezing during a 2 min CS test, 24 hr after extinction. *p < 0.05 versus retention control (RC); +p < 0.05 versus vehicle–extinction.
