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. 2015 Dec 12;17(4):737–745. doi: 10.1093/pm/pnv042

Figure 2.

Figure 2

There was no significant effect of stimulation polarity on mean CP threshold (not graphed), CP tolerance, CP endurance, or BH time (all F1,38  < 1.23, all P > 0.27). Mean values by polarity are below each error bar. Each participant received both polarities of stimulation in this within-participants design. Error bars represent ±1 standard error of the mean (SEM).