[1] Garland, E. L, Fredrickson,B.L., Kring, A.M., Johnson, D.P., Meyer, P.S. & Penn, D.L (In press), Upward spirals of positive emotions counter downward spirals of negativity: Insights from the broaden-and-build theory and affective neuroscience on the treatment of emotion dysfunctions and deficits in psychopathology. Clinical Psychology Review.
[2] Cohn, M. A., Fredrickson, B. L., Brown, S. L., Mikels, J. A., & Conway, A. M. (2009). Happiness unpacked: Positive emotions increase life satisfaction by building resilience. Emotion, 9(3), 361−368.
[3] Kok, B.E., Catalino, L. I. & Fredrickson, B.L. (2008). The broadening, building, buffering effects of positive emotions. In S. J. Lopez (Ed.), /Positive psychology: Exploring the best of people: Vol. 3 Capitalizing on emotional experiences/ (pp.1-19)/./Westport, CT: Greenwood Publishing Company.
[4] Fredrickson, B. L. (2009). Positivity: Groundbreaking research reveals how to embrace the hidden strength of positive emotions, overcome negativity, and thrive. New York: Crown Publishing Group.
[5] Fredrickson, B. L. (2003). The value of positive emotions. American Scientist, 91, 330-335.
[6] Fowler,J., & Christakis,N. (2009) Dynamic spread of happiness in a large social network: Longitudinal analysis over 20 years in the Framingham Heart Study. British Medical Journal, 338 pp. 1-13