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. Author manuscript; available in PMC: 2015 Jun 7.
Published in final edited form as: Am J Psychiatry. 2014 Aug;171(8):844–853. doi: 10.1176/appi.ajp.2014.13040502

TABLE 3.

Summary of Results of Mindfulness Training Compared With Training as Usual in Marines

Domain Unit of Analysis Result Effect Size
Stress physiology Heart rate Increased reactivity; greater recovery d=0.43; d=0.67
Breathing rate Greater recovery d=0.93
Sympathoadrenomedullary Neuropeptide Y Decreased d=0.38
Interoception fMRI percent signal change Decreased activation in insula and anterior cingulate gyrus d=0.92; d=0.86
Resilience Response to Stressful Experiences Scale As resilience increased, insula activation decreased r=−0.42