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Date: May 23, 2017 Source: Vrije Universiteit Amsterdam Summary: Scientists have made a major advance in understanding the genetic underpinnings of intelligence. Using a large dataset of more than 78,000 individuals with information on DNA genotypes and intelligence scores, the team discovered novel genes and biological routes for intelligence. Intelligence is one of the most investigated traits in humans and higher intelligence is associated with important economic and health-related life outcomes. Despite high heritability estimates of 45% in childhood and 80% in adulthood, only a handful of genes had previously been associated with intelligence and for most of these genes the findings were not reliable. The study, published in the journal Nature Genetics, uncovered 52 genes for intelligence, of which 40 were completely new discoveries. Most of these genes are predominantly expressed in brain tissue. Read more: https://www.sciencedaily.com/releases/2017/05/170523083324.htm