The Trust Molecule by Paul J. Zak - WSJ.com
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strikingly, we found that you don't need to shoot a chemical up
someone's nose, or have sex with them, or even give them a hug in order
to create the surge in oxytocin that leads to more generous behavior. To
trigger this "moral molecule," all you have to do is give someone a
sign of trust. When one person extends himself to another in a trusting
way—by, say, giving money—the person being trusted experiences a surge
in oxytocin that makes her less likely to hold back and less likely to
cheat. Which is another way of saying that the feeling of being trusted
makes a person more…trustworthy. Which, over time, makes other people
more inclined to trust, which in turn…
Bi-Ro team behavior can evolve not just because teams can have advantages in some situations, but through evolution itself. A chemical basis for cooperation in teams then can evolve if it leads to more survival or devolve if it hurts an animal or person's chances for survival.
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