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. 2017 Nov 29;11:239. doi: 10.3389/fnbeh.2017.00239

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Copyright © 2017 Qureshi and Jha.

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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The percent freezing response in Non-SD (NSD) animals on the baseline, training and testing days. (A) The NSD mice exhibited a significant increase in percent freezing (p < 0.001; F_(2,23) = 60.64) on the testing day (compared to baseline day: Tukey p < 0.001; compared to training day: Tukey p < 0.001). (B) The percent freezing significantly increased on the testing day during the 0–2 min (compared to baseline day: Tukey p < 0.001; compared to training day: Tukey p < 0.001), 2–4 min (compared to baseline day: Tukey p < 0.001; compared to training day: Tukey p < 0.001), and 4–5 min (compared to baseline day: Tukey p < 0.001) time periods (the corresponding times of pre-shock, shock and post-shock periods of the training day). ***p < 0.001 (compared to baseline day); ^###p < 0.001 (compared to training day).