How intelligence changes with age: an analysis of common genetic variants shows that hereditary factors that influence intelligence in childhood also affect it in old age. Such work could signal the end of the nature-nurture controversyFrancis Galton - Charles Darwin'...
4.3Common Underlying Factors Between Emotions and Health: Constitutional Vulnerability A third possible link between emotions and health is that there may be common underlying factors for bothemotionalityand the occurrence of disease. For example, there may begenetic factorsthat influence, on the one ha...
Importantly, the meta-analysis did not show any evidence that other factors - such as age of testing, whether the tests measured achievement and knowledge orintelligence, whether the tests were of a single ability or a composite cognitive measures - influenced the results. The researchers suggest ...
Eric Schmitt and colleagues found that more than 85 percent of individual differences in total cerebral surface area in their sample of twins and families could be attributed togenetic factors. The researchers also report that modest phenotypic correlations between surface area of the brain's language...
Multivariate genetic analyses revealed moderate to quite sizable genetic correlations between intelligence and personality, indicating that the phenotypic correlations between the 2 are largely attributable to the influence of common genetic factors.doi:10.1080/87565649809540703...
Over the past decade, genome-wide association tests have been used to discovergeneticvariants that influence gene expression, referred to asexpression quantitative trait loci(eQTL)[26]. As with all association tests that do not include everygenetic variant, significantly associated variants are not nec...
Environmental measures used widely in the behavioral sciences show nearly as much genetic influence as behavioral measures, a critical finding for interpreting associations between environmental factors and children's development. This research depends on the twin method that compares monozygotic and dizygotic...
Pedigree-based analyses of intelligence have reported that genetic differences account for 50–80% of the phenotypic variation. For personality traits these effects are smaller, with 34–48% of the variance being explained by genetic differences. However
5A–C), suggesting that preferential genetic influences on hub connectivity cannot be explained simply by the longer average distance between hubs (Supplementary Fig. 1D). Other factors, such as the number of outliers excluded from the analysis (Supplementary Fig. 5D–F, K) or differences in ...
—There is now a large body of evidence that supports the conclusion that individual differences in most, if not all, reliably measured psychological traits, normal and abnormal, are substantively influenced by genetic factors. This fact has important implications for research and theory building in ...