@article {213,
	title = {A sniff of trust: meta-analysis of the effects of intranasal oxytocin administration on face recognition, trust to in-group, and trust to out-group.},
	journal = {Psychoneuroendocrinology},
	volume = {37},
	year = {2012},
	month = {2012 Mar},
	pages = {438-43},
	abstract = {<p>The neuropeptide oxytocin has a popular reputation of being the \&$\#$39;love\&$\#$39; hormone. Here we test meta-analytically whether experiments with intranasal administration of oxytocin provide support for the proposed effects of oxytocin. Three psychological effects were subjected to meta-analysis: facial emotion recognition (13 effect sizes, N=408), in-group trust (8 effect sizes, N=317), and out-group trust (10 effect sizes; N=505). We found that intranasal oxytocin administration enhances the recognition of facial expressions of emotions, and that it elevates the level of in-group trust. The hypothesis that out-group trust is significantly decreased in the oxytocin condition was not supported. It is concluded that a sniff of oxytocin can change emotion perception and behavior in trusting relationships.</p>
},
	keywords = {Administration, Intranasal, Clinical Trials as Topic, Emotions, Facial Expression, Female, Humans, Male, Oxytocin, Peer Group, Photic Stimulation, Recognition (Psychology), Sex Characteristics, Time Factors, Trust, Visual Perception},
	issn = {1873-3360},
	doi = {10.1016/j.psyneuen.2011.07.008},
	author = {van IJzendoorn, M. H. and Bakermans-Kranenburg, M. J.}
}
