Infants’ prosocial behavior is governed by cost-benefit analyses

Interpersonal synchrony increases prosocial behavior in infants.

Adults who move together to a shared musical beat synchronously as opposed to asynchronously are subsequently more likely to display prosocial behaviors toward each other. The development of musical behaviors during infancy has been described previously, but the social implications of such behaviors in infancy have been little studied. In Experiment 1, each of 48 14-month-old infants was held b...

Being mimicked increases prosocial behavior in 18-month-old infants.

Most previous research on imitation in infancy has focused on infants' learning of instrumental actions on objects. This study focused instead on the more social side of imitation, testing whether being mimicked increases prosocial behavior in infants, as it does in adults (van Baaren, Holland, Kawakami, & van Knippenberg, 2004). Eighteen-month-old infants (N = 48) were either mimicked or not b...

immunization against haemophilus influenzae type b in iran; cost‑utility and cost‑benefit analyses

in children. although its burden is considerably preventable by vaccine, routine vaccination against hib has not been defined in the national immunization program of iran. this study was performed to assess the cost-benefit and cost‑utility of running an hib vaccination program in iran. methods: based on a previous systematic review and meta‑analysis for vaccine efficacy, we estimated the avert...

Running Head: INDIVIDUATION REDUCES PROSOCIAL BEHAVIOR The hidden cost of humanization: Individuation reduces prosocial behavior toward ingroup members

Behavior genetics of prosocial behavior

The field of quantitative genetics aims to understand how environmental and genetic factors independently and interactively shape behavioral traits in humans. This scientific approach has been applied to a wide variety of observed characteristics, or phenotypes, making this work relevant for all areas of psychology. To fully understand this body of work, we first need to introduce the quantitat...