Temperament and Child Psychopathology: Specificity in Shared Genetic Effects

Lemery‐Chalfant, Kathryn; Clifford, Sierra

doi:10.1007/978-1-0716-0933-0_5

Cited by 2 publications

(4 citation statements)

References 106 publications

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“…The spectrum model is an empirically supported model that has been used to understand how features of children's temperament and behavior overlap with psychopathology, including aggressive behavior. The spectrum model posits that temperament and psychopathology are situated on a dimensional continuum, with temperament a subclinical manifestation of the latter, linked by common etiological influences (Lemery-Chalfant & Clifford, 2020;Tackett, 2006). The spectrum model has traditionally received support from twin studies (Gagne et al, 2011;Lemery-Chalfant et al, 2008) and psychobiological studies (Beauchaine et al, 2001;Iacono et al, 1999), which, respectively, have found genetic variance and psychobiological correlates shared across selfregulatory traits and externalizing psychopathology.…”

Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

“…The spectrum model has traditionally received support from twin studies (Gagne et al, 2011;Lemery-Chalfant et al, 2008) and psychobiological studies (Beauchaine et al, 2001;Iacono et al, 1999), which, respectively, have found genetic variance and psychobiological correlates shared across selfregulatory traits and externalizing psychopathology. Common genetic variance, however, need not be the only explanation for the association between temperament and aggression, suggesting that longitudinal studies of temperament are needed to test the spectrum model (Lemery-Chalfant & Clifford, 2020). For instance, nurturing childhood environmental exposures, such as warm and responsive parenting, exhibit positive associations with effortful control (Eiden et al, 2004) and negative associations with aggression (Bayer & Cegala, 1992;Boeldt et al, 2012).…”

Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

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A genetically informed longitudinal study of early-life temperament and childhood aggression

Penichet,

Beam,

Luczak

et al. 2024

Dev Psychopathol

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The present study examined the longitudinal associations between three dimensions of temperament – activity, affect-extraversion, and task orientation – and childhood aggression. Using 131 monozygotic and 173 dizygotic (86 same-sex) twin pairs from the Louisville Twin Study, we elucidated the ages, from 6 to 36 months, at which each temperament dimension began to correlate with aggression at age 7. We employed latent growth modeling to show that developmental increases (i.e., slopes) in activity were positively associated with aggression, whereas increases in affect-extraversion and task orientation were negatively associated with aggression. Genetically informed models revealed that correlations between temperament and aggression were primarily explained by common genetic variance, with nonshared environmental variance accounting for a small proportion of each correlation by 36 months. Genetic variance explained the correlations of the slopes of activity and task orientation with aggression. Nonshared environmental variance accounted for almost half of the correlation between the slopes of affect-extraversion and aggression. Exploratory analyses revealed quantitative sex differences in each temperament-aggression association. By establishing which dimensions of temperament correlate with aggression, as well as when and how they do so, our work informs the development of future child and family interventions for children at highest risk of aggression.

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Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

A genetically informed longitudinal study of early-life temperament and childhood aggression

Penichet,

Beam,

Luczak

et al. 2024

Dev Psychopathol

View full text Add to dashboard Cite

show abstract

Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

“…The spectrum model has traditionally received support from twin studies (Gagne et al, 2011;Lemery-Chalfant et al, 2008) and psychobiological studies (Beauchaine et al, 2001;Iacono et al, 1999), which, respectively, have found genetic variance and psychobiological correlates shared across self-regulatory traits and externalizing psychopathology. Common genetic variance, however, need not be the only explanation for the association between temperament and aggression, suggesting that longitudinal studies of temperament are needed to test the spectrum model (Lemery-Chalfant & Clifford, 2020). For instance, nurturing childhood environmental exposures, such as warm and responsive parenting, exhibit positive associations with effortful control (Eiden et al, 2004) and negative associations with aggression (Bayer & Cegala, 1992;Boeldt et al, 2012).…”

Section: Theoretical Model Of Temperament and Childhood Aggressionmentioning

confidence: 99%

A Genetically Informed Longitudinal Study of Early-Life Temperament and Childhood Aggression

Penichet¹,

Beam²,

Luczak³

et al. 2023

Preprint

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Although genetic and environmental variance accounts for the association between temperament and childhood externalizing behavior, few studies have investigated the etiology underlying temperament development and externalizing behavior. Using 157 monozygotic and 198 dizygotic twin pairs from the Louisville Twin Study, we tested the general hypothesis that genetic variance would primarily account for the association between infant and toddler temperament, as measured by activity, task orientation, and affect-extraversion, from 6-36 months of age and childhood aggression at age 7. Bivariate and latent growth model analyses revealed that increases in activity significantly predicted higher levels of aggression whereas increases in task orientation and affect-extraversion significantly predicted lower levels of aggression. Genetically informed models showed that genetic correlations increased from 6 to 36 months between aggression and activity and task orientation. In biometric latent growth models, we observed small to moderate genetic correlations (rG = .35, –.20, and –.25) between aggression and change in activity, affect-extraversion, and task orientation, respectively. Nonshared environmental correlations were small and nonsignificant but tended to increase starting at 30 months. Findings suggest that although genetic variance is the primary etiological component between temperament development and childhood aggression, environmental factors may begin to account for their association during toddlerhood.

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Temperament and Child Psychopathology: Specificity in Shared Genetic Effects

Cited by 2 publications

References 106 publications

A genetically informed longitudinal study of early-life temperament and childhood aggression

A genetically informed longitudinal study of early-life temperament and childhood aggression

A Genetically Informed Longitudinal Study of Early-Life Temperament and Childhood Aggression

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