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Examining the familial link between positive affect and empathy development in the second year
Michele M Volbrecht1, Kathryn Lemery-Chalfant, Nazan Aksan
1Department of Psychology, University of Wisconsin--Madison, 53706-1969, USA. mmvolbrecht@wisc.edu
The Journal of Genetic Psychology
|October 17, 2007
Summary
Early positive affect in toddlers predicts later empathy-related behaviors like helping and hypothesis testing. Environmental factors significantly influence these early social-emotional developments in twins.
Area of Science:
- Developmental psychology
- Behavioral genetics
- Child development
Background:
- Early childhood is a critical period for developing social-emotional skills.
- Understanding the interplay between positive affect and empathy is crucial for child development research.
Purpose of the Study:
- To investigate the longitudinal relationship between positive affect and empathy-related behaviors in toddlers.
- To explore the genetic and environmental influences on these developmental trajectories.
Main Methods:
- Longitudinal study of 584 twins (12-25 months).
- Assessed positive affect via laboratory tasks and maternal reports.
- Measured empathy-related helping and hypothesis testing behaviors.
- Employed behavior-genetic analyses to disentangle environmental and genetic influences.
Main Results:
- Positive affect at 12-22 months predicted empathy-related helping and hypothesis testing at 19-25 months.
- Girls displayed more concern, while boys showed more hypothesis testing.
- Shared environment significantly influenced positive affect and empathy (helping, concern).
- Genetics and nonshared environment impacted hypothesis testing; environment explained covariation between positive affect and helping; genetics influenced positive affect and hypothesis testing covariation.
Conclusions:
- Early positive affect is a significant predictor of later empathy-related behaviors.
- Both shared environment and genetic factors play distinct roles in shaping these developmental pathways.
- Environmental factors are key in the link between positive affect and helping behaviors.
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