1. Williams syndrome is marked by heart defects, mental retardation, and a lack of social anxiety that produces exceedingly friendly human beings.

2. While Williams syndrome is relatively rare, studying it might shed more light on autism – a much more prevalent developmental disorder whose symptoms include problems in social behavior.

3. Researchers re-did previous social-bias experiments on 20 children with Williams syndrome and 20 control kids.

4. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condition called Williams syndrome.

5. True to form, the control group preferred their own race and gender. The children with Williams syndrome, however, had no racial preference—although they still discriminated by gender.

6. And a new study published in the journal Current Biology finds that children with Williams syndrome don't make racial stereotypes.

7. Everyone, that is, except people with a rare genetic condition called Williams syndrome.

8. Atypical social engagement is framed in terms of disorders such as autism and Williams Syndrome, as well as in the effects of adverse early rearing environments such as institutions.