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. Author manuscript; available in PMC: 2007 May 30.
Published in final edited form as: Dev Psychobiol. 2001 Nov;39(3):188–198. doi: 10.1002/dev.1044

FIGURE 1.

FIGURE 1

Number of approaches towards the conditioned odor for postnatal Day 8 rat pups receiving either paired (n = 4) or backward (n = 6) odor–shock presentations, or odor-only (n = 6) presentations in Experiment 1A. Bars represent mean values; vertical lines indicate SEM. Paired presentations of odor-moderate shock resulted in an increased number of choices towards the peppermint odor (A). Preference ratio for postnatal Day 8 rat pups receiving either paired (n = 7) or backward (n = 8) odor–shock, or odor-only (n = 8) presentations in Experiment 1B. Bars represent mean values, vertical lines indicate SEM. Paired presentations resulted in an increased number of choices made towards the peppermint odor (B).