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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: J Pain. 2019 Feb 27;20(9):1027–1039. doi: 10.1016/j.jpain.2019.02.012

Fig 2.

Fig 2.

Testing day timeline and experimental procedures for the Conditioned Pain Modulation (CPM) testing day. The CPM task is expanded to show the 3 conditions and the administration of testing stimuli. 5 electrical stimulations were delivered during each phase. The interstimulus interval between each electric stimulation ranged from 8-12 seconds.