Fig. 4
From: A protein phosphatase 2A deficit in the hippocampal CA1 area impairs memory extinction
PP2A CKO mice had normal abilities of memory formation but an impairment in memory extinction. a, b In the object recognition test, CKO mice formed normal STM and LTM (Cont group: N = 8, CKO group: N = 10). c CKO mice (N = 9) and Cont mice (N = 8) formed contextual fear memory after three training trials. However, the freezing level of CKO mice was significantly higher than that of Cont mice over the 3 days of the cFC extinction phase. *** p < 0.001