Figure 2.

Social fear conditioning (SFC) induces long-term social fear in mice. (a) Pre-conditioning investigation of the non-social stimulus (empty cage) by unconditioned (uc) and conditioned (c) mice during SFC (day 1; n=9 per group). (b) Investigation of non-social (ns1–ns3) and social (cages with mice; s1–s6) stimuli during extinction on day 15 (3-min exposure to stimulus, 3-min inter-exposure interval). (c) Investigation of social stimuli (s1–s6) during extinction recall on day 16. Data represent mean percentage of investigation time±SEM. ^*p<0.05 vs uc mice.