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. Author manuscript; available in PMC: 2012 Oct 13.
Published in final edited form as: Neuroscience. 2011 Jul 28;193:377–386. doi: 10.1016/j.neuroscience.2011.07.059

Fig. 1. Mechanical hyperalgesia as measured by the average response threshold to von Frey filament stimulation in the forepaw.

Fig. 1

Increase sensitivity corresponds to a decreased response threshold. Painful distraction significantly reduced thresholds below nonpainful distraction (*p<0.002) and sham controls (†p<0.001) for all testing days. Nonpainful and sham responses were only significantly (‡p=0.02) different from each other on postoperative day 5.