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Psychopaths are born anti-social, not corrupted by bad parenting, scientists reveal today.
A study of twins showed that anti-social behaviour was strongly inherited in children with psychopathic tendencies. In children without psychopathic traits, being anti-social was chiefly the result of environmental factors.
The findings support previous research indicating that children with psychopathic tendencies often remain an anti-social problem. Psychopaths are generally recognised by a lack of empathy and weak conscience. If a psychopath does something that hurts another person, he or she is less likely to feel remorse than other people.
These tendencies are a recognised warning sign of anti-social behaviour in young children.
To help identify the genetic components of anti-social behaviour, a team of British psychiatrists studied 3,687 pairs of seven-year-old twins.
Twins are often used by researchers investigating inherited traits. Identical twins share the same genes, and, therefore, the same inherited influences, whereas non-identical twins do not. By comparing the two groups, it is possible to see if a trait is or is not carried in the genes.
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