Age-Related Variations of Genetic and Environmental Contributions to the Covariation of Fear, Distress and Externalizing Symptoms: A Twin Study in Childhood and Adolescence.
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| Title: | Age-Related Variations of Genetic and Environmental Contributions to the Covariation of Fear, Distress and Externalizing Symptoms: A Twin Study in Childhood and Adolescence. |
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| Authors: | De Francesco, Stefano (AUTHOR), Scaini, Simona (AUTHOR), Alessandri, Guido (AUTHOR), Medda, Emanuela (AUTHOR), Camoni, Laura (AUTHOR), Stazi, Maria Antonietta (AUTHOR), Fagnani, Corrado (AUTHOR) |
| Source: | Child Psychiatry & Human Development. Oct2024, Vol. 55 Issue 5, p1354-1366. 13p. |
| Subjects: | Externalizing behavior, Internalizing behavior, Psychological distress, Pathological psychology, Twin studies |
| Abstract: | The frequency with which Internalizing and Externalizing symptoms co-occur suggests that, behind both domains, there may be a common susceptibility represented by a general psychopathology factor. However, it's still unclear whether this common susceptibility is affected by age-related variations. Internalizing (i.e., Fear and Distress) and Externalizing symptoms were evaluated in 803 twin pairs from the population-based Italian Twin Registry. Model-fitting analysis was performed separately in the 6–14 and 15–18 age groups to estimate genetic and environmental contributions to the covariance among symptoms. For the 6–14 group, a multivariate Cholesky model best fitted the data, while, for the 15–18 group, the best fit was provided by a Common Pathway model in which nearly 50% of total variance of each trait was mediated by common genetic factors. Our findings support a common susceptibility behind Internalizing and Externalizing symptoms, mainly genetic in origin, that becomes more evident at the beginning of puberty. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | The frequency with which Internalizing and Externalizing symptoms co-occur suggests that, behind both domains, there may be a common susceptibility represented by a general psychopathology factor. However, it's still unclear whether this common susceptibility is affected by age-related variations. Internalizing (i.e., Fear and Distress) and Externalizing symptoms were evaluated in 803 twin pairs from the population-based Italian Twin Registry. Model-fitting analysis was performed separately in the 6–14 and 15–18 age groups to estimate genetic and environmental contributions to the covariance among symptoms. For the 6–14 group, a multivariate Cholesky model best fitted the data, while, for the 15–18 group, the best fit was provided by a Common Pathway model in which nearly 50% of total variance of each trait was mediated by common genetic factors. Our findings support a common susceptibility behind Internalizing and Externalizing symptoms, mainly genetic in origin, that becomes more evident at the beginning of puberty. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 0009398X |
| DOI: | 10.1007/s10578-023-01498-w |
