FIG 2.

Impaired LTM but not STM in LIMK1^−/− mice in the fear conditioning test. (A) During the training phase, LIMK1^−/− mice exhibited a similar amount of freezing as their WT littermates before and after the foot shock. (B) In an STM contextual test carried out 2 h after the training, LIMK1^−/− mice showed a similar amount of freezing as their WT littermates. (C, D) In LTM tests carried out 48 h (C) or 1 week (D) after the training, LIMK1^−/− mice showed significantly reduced freezing compared to their WT littermates. Error bars represent SEMs. *, P < 0.05; n, number of animals; ns, no statistical significance.