The ability to adaptively alter one’s emotions even in the face of emotional distress.
Gratz, K. L., & Tull, M. T. (2010). Emotion regulation as a mechanism of change in acceptance-and mindfulness-based treatments. In R. A. Baer (Ed.), Assessing mindfulness and acceptance: Illuminating the processes of change (pp. 107 – 134). New Harbinger Publications.