Sustained striatal activity predicts eudaimonic well-being and cortisol output
Psychological Science (2013) - Comment
pubmed: 24058063  doi: 10.1177/0956797613490744  issn: 0956-7976  issn: 1467-9280 

Aaron S. Heller, Carien M. Van Reekum, Stacey M. Schaefer, Regina C. Lapate, Barry T. Radler, Carol D. Ryff, Richard J. Davidson