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. 2014 Aug 7;5:861. doi: 10.3389/fpsyg.2014.00861

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Copyright © 2014 Clouard, Meunier-Salaün, Meurice, Malbert and Val-Laillet.

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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Experimental device and paradigm designed to perform oral (OS) and duodenal (DS) stimulations for brain imaging in anaesthetized pigs. The illustrations used to make this figure were obtained from the “Servier Medical Art” website, http://www.servier.fr/servier-medical-art. OS–: oral non-sweet stimulation with artificial saliva; OS+: oral stimulation with 5% sucrose artificial saliva; DS–: duodenal stimulation with saline; DS+: duodenal stimulation with 16% sucrose. Injection of ^99mTc-HMPAO was performed 50 min after the start of the DS but was concomitant to the OS.