CHILDREN with a genetic disorder which prompts them to be over-friendly with strangers are providing clues to the origins of sociability.
While those with (WS) find it easy to walk up to perfect strangers and make eye contact, they struggle to form lasting relationships. So of the University of Utah in Salt Lake City and her colleagues wondered if people with WS might shed light on how sociability developed.
The team identified a girl with WS who, unusually, wasn’t overly friendly to strangers but was good at forming lasting relationships. They compared her genome with that…
