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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Neuropharmacology. 2011 Mar 4;62(2):695–704. doi: 10.1016/j.neuropharm.2011.02.023

Table 2.

Summary of non-human primate findings with the AX+/BX− paradigm.

Fear Learning (AX+ > NA) Safety Signal Learning (BX−< AX+) Safety Signal Transfer (AB < AX+)

Control (sham lesions) Yes Yes Yes
Amygdala lesions No Yes Yes
OFC lesions Yes Yes Yes
Hippocampus lesions Yes Yes Yes
Hippocampus/striatum lesions Yes/No No No