La science du sourire...
Lip Service : The Science of Smiles | Brain Pickings
►http://www.brainpickings.org/index.php/2011/08/30/lip-service-the-science-of-smiles
Lip Service: The Science of Smiles
by Maria Popova
What crow’s feet have to do with authenticity and why you don’t remember your first smile.
Years ago, I did an undergraduate thesis on nonverbal communication and facial expression, a large portion of which revolved around the Duchenne smile — a set of anatomical markers that differentiate an authentic smile from a feigned one. The science of smiles is, of course, far complex than the mere fake vs. real dichotomy — the universal expression of positive disposition lives on a rich spectrum of micro-expressions and nuances. That’s exactly what Marianne LaFrance explores in Lip Service: Smiles in Life, Death, Trust, Lies, Work, Memory, Sex, and Politics — a fascinating new book drawing on the author’s research at Yale and Boston College, alongside a wide array of cross-disciplinary studies from psychology, anthropology, biology, medicine and computer science, to reveal how smiles impact our inter-personal dynamics and our life experience as social beings.