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. 2018 Sep 19;9:1616. doi: 10.3389/fpsyg.2018.01616

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Copyright © 2018 Tretter and Löffler-Stastka.

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) and the copyright owner(s) 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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Model of systems complex of the desire system coupled with the emotion system. Bear in mind: the component “pleasure” of Figure 11 is substituted here by the opposing system “unpleasure”.