Contrary to expectation, under oxytocin subjects didn't increase contagious yawning but hid their own yawns more. http://www.sciencedirect.com/science/article/pii/S0304394015301336 …
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Contrary to expectation, under oxytocin subjects didn't increase contagious yawning but hid their own yawns more. http://www.sciencedirect.com/science/article/pii/S0304394015301336 …