AUTHOR=Hargis Mary B. , Oppenheimer Daniel M. TITLE=Commentary: Greater Emotional Gain from Giving in Older Adults: Age-Related Positivity Bias in Charitable Giving JOURNAL=Frontiers in Psychology VOLUME=7 YEAR=2016 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2016.01075 DOI=10.3389/fpsyg.2016.01075 ISSN=1664-1078