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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Behav Neurosci. 2012 Dec;126(6):749–761. doi: 10.1037/a0030713

Figure 2.

Figure 2

Response topographies to five unconditioned stimulus (US) intensities on Pretest and Post Test by two subjects trained and tested at the same time. Responses are for the first 20 US presentations and averaged across four US durations. The top rabbit (Susceptible) shows substantial increases in response amplitude and area particularly at intermediate US intensities (0.25 and 0.5 mA) following conditioned stimulus-unconditioned stimulus pairings (Post Test) and the bottom rabbit (Resilient) shows very little change in responding from Pretest to Post Test. Both rabbits had high levels of conditioned response (CR) acquisition (100% vs. 98.7% CRs).