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. 2013 Aug 22;7:108. doi: 10.3389/fnbeh.2013.00108

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Copyright © 2013 Hamacher-Dang, Engler, Schedlowski and Wolf.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Mean percentage of stomach trouble predictions to critical stimuli across all trials of the acquisition phase (left side of the graph) and the extinction phase (right side). For the acquisition phase, data is averaged over stimuli (CS) a, b and e as they underlay similar contingencies in this phase. CS e+ and g− were not shown during extinction. CS a/b+ were shown in context A during acquisition (day 1) and extinguished in context B (day 2). Error bars indicate standard errors of the mean.