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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Psychoneuroendocrinology. 2009 Dec 29;35(6):846–857. doi: 10.1016/j.psyneuen.2009.11.009

Figure 1. Examples of the CSs presented on a computer monitor during conditioning.

Figure 1

A. AX+, the reinforced stimulus, i.e. “the danger signal”; B. BX−, the non-reinforced stimulus, “the safety signal”; and C. AB, conditioned inhibition test trial, i.e., “transfer of safety”. Shape and color assignment was counterbalanced across subjects.