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. 2014 Aug 1;8:263. doi: 10.3389/fnbeh.2014.00263

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Copyright © 2014 Hess, Haimovici, Muñoz and Montoya.

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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Mean behavioral persistence on the IGT for chronic pain patients fibromyalgia (FM) and healthy controls (HCs). (Panel A) Mean number of trials in which a participant was consecutively drawing cards from the same deck throughout the task. Subjects’ IDs are identical as in Figure 1. (Panel B) Average CDF of the persistence behavior observed in chronic pain patients (FM) and HCs. The average CDF in chronic pain patients has a steeper slope than in HCs, showing that patients are less persistent in drawing cards than HCs. The inset displays individuals’ CDFs.