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. 2016 Aug 30;7(1):36. doi: 10.1186/s13229-016-0098-4

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 6 — Mean pupil diameter across key phases of the video, pre-box (the first presentation of the box, before the emotional reaction), emotional reaction, zoom in (during which camera zooms in the post-box) and post-box (the second presentation of the box, after the emotional reaction). Error bars represent standard error of the mean