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. Author manuscript; available in PMC: 2013 Oct 25.
Published in final edited form as: Psychophysiology. 2008 Sep 16;46(1):10.1111/j.1469-8986.2008.00720.x. doi: 10.1111/j.1469-8986.2008.00720.x

Figure 2. Group mean P3b amplitudes to target stimuli at the Pz site in the non-medicated, non-smoking subsample.

Figure 2

ExP+: combat veterans with combat-related PTSD; ExP−: combat veterans without combat-related PTSD; UxP+: non-combat, monozygotic twins of combat veterans with combat-related PTSD; UxP−: non-combat, monozygotic twins of combat veterans without combat-related PTSD. Error bars indicate standard errors.