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. 2016 Mar 10;10:39. doi: 10.3389/fnbeh.2016.00039

Figure 2.

Figure 2

Pre-exposure and acquisition phases of eyeblink conditioning for groups receiving context alone or US alone pre-exposure. The pre-exposure (pre) phase consisted of 30 trials (context alone or US alone presentations) while the acquisition (acq) phase consisted of 30 CS-US paired trials. There were no significant effects on spontaneous blinks during the pre-exposure phase. All participants acquired conditioned eyeblinks during acquisition training, but US alone pre-exposures disrupted CR acquisition as compared to context pre-exposures. Error bars represent standard error of the mean.