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. 2015 Feb;22(2):92–100. doi: 10.1101/lm.034918.114

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© 2015 Kochli et al.; Published by Cold Spring Harbor Laboratory Press

This article is distributed exclusively by Cold Spring Harbor Laboratory Press for the first 12 months after the full-issue publication date (see http://learnmem.cshlp.org/site/misc/terms.xhtml). After 12 months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.

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Figure 1. — (A) Timeline for Experiment 1. (B) The minimum (black) and maximum (gray) extent of bilateral lesions in BLA (atlas images taken and modified from Paxinos and Watson 1998 with permission from Elsevier 1998). The number of animals in each group was as follows: trace sham, n = 7; trace lesion, n = 7; delay sham, n = 8; delay lesion, n = 9; N = 31. (C) The percentage of time spent freezing during the baseline period (first 3 min), tone, and trace interval or trace interval equivalent during the tone test. (D) Simultaneously learned contextual fear expressed during the context test.