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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Neurosci Biobehav Rev. 2008 Dec 25;33(3):475–491. doi: 10.1016/j.neubiorev.2008.12.003

Figure 4.

Figure 4

Effects of anger-out on pain threshold opioid blockade effects in male and female participants. Anger-out values plotted are hypothetical values representing one standard deviation (SD) below and above the sample mean. Pain threshold blockade effects (y-axis) reflect placebo condition pain threshold values minus naloxone condition pain threshold values. Larger blockade effects indicate greater opioid analgesia.