Articles

Gratefulness: http://www.gratefulness.org/readings/index.htm
Heart-focused attention: http://www.heartmath.org/research/research-papers/index.html
Love and altruism: http://www.fetzer.org/Resources.aspx?PageID=Resources&NavID=1
Neurofeedback: http://biocybernaut.com/publications/publications.html
Transformation: http://www.noetic.org/publications.cfm