The investigators will study up to one thousand subjects who will be randomized into same-gendered teams of three or volunteer as acquainted groups of three . Teams will be randomized to receive oxytocin or placebo. The investigators will first measure baseline personality traits including prosocial orientation. Cohesion will then be measured using a cooperative, virtual unmanned aerial vehicle (UAV) flying mission. All online behavior will be recorded within the task and all offline, real world, behavior will be video recorded throughout the study by digital cameras for later behavioral coding. To measure biobehavioral synchrony, autonomic physiology will be recorded and saliva samples will be taken throughout behavioral testing.
