Reactivation-dependent transfer of fear memory between contexts requires M1 muscarinic receptor stimulation in dorsal hippocampus of male rats

Transfer of fear to an alternate context is persistent when tested 4 weeks later. During the testing session, the Same-RA group from the previous experiment froze significantly higher than the Same-NoRA group, indicating that the transfer of fear to an alternate context is persistent. Freezing behavior (n = 7 per group) was measured as percent freezing (±SEM) across an 8 min test session. (*) P < 0.05.