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. Author manuscript; available in PMC: 2019 Jul 8.
Published in final edited form as: Neurobiol Learn Mem. 2017 Oct 13;145:172–180. doi: 10.1016/j.nlm.2017.10.004

Fig. 4.

Fig. 4.

Mean (± SEM) nictitating membrane response (NMR) conditioned response (CR) peak amplitudes (measured in millimeters) during the CR period before unconditioned stimulus onset for each group for the first tone presentation (Trial 1) of Sessions 3, 4, 5, and 6 of NMR conditioning. Subjects were assigned to one of five groups based on the point during NMR conditioning when they produced a CR 8 times in 10 consecutive trials. The group assignments are: Early Day 1 (white bars), Late Day 1 (diagonal, black bars), Early Day 2 (diagonal brick bars), Late Day 2 (gray bars) and Early Day 3 (black bars).