1 Centre for Evolution and Psychology, School of Psychology, University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia.
2 Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, 954 Gatewood Road NE, Atlanta, GA 30329, USA.
3 Silvio O. Conte Center for Oxytocin and Social Cognition, Yerkes National Primate Research Center, Emory University, 954 Gatewood Road NE, Atlanta, GA 30329, USA.
4 Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 171 77 Stockholm, Sweden.
5 Department of Psychiatry, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 5, 1105 AZ Amsterdam, The Netherlands.