ArticleEmotion (Washington, D.C.)2017
Genetic and environmental contributions to the development of positive affect in infancy.
Article in Emotion (Washington, D.C.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.
- Heritability of Psychological Traits and Developmental Milestones in Infancy: A Systematic Review and Meta-analysis.JAMA network open · 2022Pooled it
- Childhood temperament types provide specificity over dimensions in predicting early adolescent symptoms of psychopathology: Genetic and environmental contributions.Clinical psychological science : a journal of the Association for Psychological Science · 2026Article
- Temperament development in infancy: What we have learned about the origins of individual differences in the past 25 years.Infant behavior & development · 2025Review
- Bidirectional Relations Among Maternal Positive Emotion, Infant Positive Emotionality, and Infant Physiological Regulation Across the First 18 Months of Life.Developmental psychobiology · 2024Article
- Capturing the complexity of child behavior and caregiver-child interactions in the HEALthy Brain and Child Development (HBCD) Study using a rigorous and equitable approach.Developmental cognitive neuroscience · 2024Article
- Variability in the expression and perception of positive affect in human infancy.Social cognitive and affective neuroscience · 2023Article
- Thai and American mothers socialize preschoolers' emotional development differently.Scientific reports · 2023Article
- Parental genetic contributions to neonatal temperament in a nonhuman primate (Macaca mulatta) model.Developmental psychobiology · 2021Article
- Developmental trajectories to reduced activation of positive valence systems: A review of biological and environmental contributions.Developmental cognitive neuroscience · 2020Review
- Observed Profiles of Infant Temperament: Stability, Heritability, and Associations With Parenting.Child development · 2020Article
- Longitudinal Research at the Interface of Affective Neuroscience, Developmental Psychopathology, Health and Behavioral Genetics: Findings from the Wisconsin Twin Project.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2019Article
- Parent- and Observer-Rated Positive Affect in Early Childhood: Genetic Overlap and Environmental Specificity.Behavior genetics · 2018Article
- Bidirectional associations between emotions and school adjustment.Journal of personality · 2018Article
- Social Facilitation of Laughter and Smiles in Preschool Children.Frontiers in psychology · 2018Article
- The Infant Version of the Laboratory Temperament Assessment Battery (Lab-TAB): Measurement Properties and Implications for Concepts of Temperament.Frontiers in psychology · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
We studied developmental changes in infant positive affect from 6 to 12 months of age, a time marked by increasing use of positive vocalizations, laughter, and social smiles. We estimated the magnitude of genetic and environmental influences on observed and parent reported infant positive affect across development. Participants were drawn from a longitudinal twin study of infancy and toddlerhood (N = 536 twin pairs). Mothers and fathers reported on infant temperament and infants were videotaped during 2 observational tasks assessing positive affect. Parents also reported on their own affect and emotional expression within the family. Biometric models examined genetic and environmental influences that contribute to the developmental continuity of positive affect. Infant positive affect was associated with increased parent positive affect and family expressions of positive affect although not with family expressions of negative affect. In addition, the shared environment accounted for a large portion of variation in infant positive affect and continuity over time. These findings highlight the importance of the family environment in relation to infant positive emotional development. (PsycINFO Database Record
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.