Henrich, Joseph. “The Evolution of Costly Displays, Cooperation and Religion: Credibility Enhancing Displays and Their Implications for Cultural Evolution.” Evolution and Human Behavior 30 (2009): 244–260.
Martens, Jason P., Jessica L. Tracy, and Azim F. Shariff. “Status Signals: Adaptive Benefits of Displaying and Observing the Nonverbal Expressions of Pride and Shame.” Cognition and Emotion 26, no. 3 (2012): 390-406
Sosis, Richard and Candace Alcorta. “Signaling, Solidarity, and the Sacred: The Evolution of Religious Behavior.” Evolutionary Anthropology: Issues, News, and Reviews 12, no. 6 (November 2003): 264-274.