American scientists from the University of California at San Diego found that variants of the same gene can affect the characteristics of human nature. In addition, there was found a link between personality traits and mental disorders.
The study is published in the journal Nature Genetics.
It is known that a person's identity is formed not only under the influence of sociological factors, but also genetically determined. Researchers have identified loci (locations of certain genes in the chromosomes), alleles of genes that have a significant impact on some of the characteristics of human personality.
Using genetic data of people granted biotech company 23andMe, scientists have found that openness or isolation of a person depends on differences in gene WSCD2 and near PCDH15 gene. A neuroticism - anxiety and emotional instability of people - defined alleles on chromosome 8p23.1 and differences in gene L3MBTL2.
Scientists have discovered that the genetic similarity observed in people with neuroticism and people suffering from chronic depression. Extroverts were "similar" to those with attention deficit hyperactivity disorder, and the curiosity and creativity has been associated with schizophrenia and bipolar disorder.