Figure 2.

Effect of actin polymerization inhibitors on PER rate after induction of long-term memory (LTM). (a) Pre-training application of 8.3 ng nl⁻¹ Cytochalasin D and (b) 0.83 ng nl⁻¹ Cytochalasin D; (c) application of 8.3 ng nl⁻¹ Cytochalasin D 1 h before backward pairing and (d) single US presentation; (e,f) post-training applications of 8.3 ng nl⁻¹ Cytochalasin D 3 h before 24 h memory retention test (e) and between 45 min and 1 h after training (f); (g) pre-training application of DMSO alone; (h) pre-training application of Latrunculin A. Number of animals per group is given on the top of the histograms. Arrows indicate injection time.