The developmental origins of a disposition toward empathy: Genetic and environmental contributions.

TLDR

The study examined how empathy develops and the genetic and environmental factors that shape it. The authors assessed cognitive and affective empathy and prosocial behavior in 409 twin pairs across multiple ages during simulated pain tasks. Empathy rose from 14 to 36 months, remained stable across ages and components, with genetic influences growing and shared environmental influences waning, while environmental factors linked empathy to prosocial behavior.

Abstract

The authors investigated the development of a disposition toward empathy and its genetic and environmental origins. Young twins' (N = 409 pairs) cognitive (hypothesis testing) and affective (empathic concern) empathy and prosocial behavior in response to simulated pain by mothers and examiners were observed at multiple time points. Children's mean level of empathy and prosociality increased from 14 to 36 months. Positive concurrent and longitudinal correlations indicated that empathy was a relatively stable disposition, generalizing across ages, across its affective and cognitive components, and across mother and examiner. Multivariate genetic analyses showed that genetic effects increased, and that shared environmental effects decreased, with age. Genetic effects contributed to both change and continuity in children's empathy, whereas shared environmental effects contributed to stability and nonshared environmental effects contributed to change. Empathy was associated with prosocial behavior, and this relationship was mainly due to environmental effects.