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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Neurobiol Learn Mem. 2018 May 18;152:71–79. doi: 10.1016/j.nlm.2018.05.009

Figure 2.

Figure 2

Cholinergic lesions in the vHipp disrupt auditory fear memory. A) Infusion of 192-IgG saporin into the vHipp attenauted AChE fiber expression in the vHipp, but B) had no effect on ChAT positive cell counts in the MS/vDBB. C) vHipp cholinergic lesions disrupted acquisition and retention of fear memory. vHipp cholinergic lesions had no effect on baseline freezing during extinction training in the extinction context (i.e. contextual fear memory discrimination) or acquistion and retention of extinction memory. # indicates main effect of trial while * indicates main effect of surgery. Scale bar on images represent 1mm.