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Pups were odor-0.5mA shock conditioned twice, first at PN7 with CORT or saline injection and then conditioned again at PN8 with a saline injection to determine if preference learning would return. The PN7 conditioning with CORT produced an odor aversion, although additional conditioning at PN8 permitted pups to learn an odor preference. *p <.05, error bars indicate SEM; N = 6 pups per group.
