Why cheaters often claim “it didn’t mean anything”, and why perceptions of what constitutes cheating vary from person to person. Also, changing faces: how women’s faces change shape over the menstrual cycle.
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Elisabeth Oberzaucher showed this month that women's faces change shape over the cycle. The images above exaggerate the differences between how women tend to appear around ovulation, when they're most fertile, and a week later, when fertility is lower. What causes the change is not yet known.
The articles covered in the show:
Foster, J. D., & Misra, T. A. (in press). It did not mean anything (about me): Cognitive dissonance theory and the cognitive and affective consequences of romantic infidelity. Journal of Social and Personal Relationships. Read summary
Kruger, D. J., Fisher, M. L. E., R. S., Chopik, W. J., Fitzgerald, C. J., & Stout, S. L. (2013). Was that cheating? Perceptions vary by sex, attachment anxiety, and behavior. Evolutionary Psychology, 11(1), 159-171. Read summary
Oberzaucher, E., Katina, S., Schmehl, S. F., Holzleitner, I. J., & Grammer, K. (2012). The myth of hidden ovulation: Shape and texture changes in the face during the menstrual cycle. Journal of Evolutionary Psychology, 10(4), 163-175. Read summary