Do you subscribe to the Duke TIP free newsletter? It's very good. One article from Spring 2008 pertinent to this thread is:

NURTURE THE NATURE: UNDERSTANDING AND SUPPORTING YOURCHILD'S UNIQUE CORE PERSONALITYby Michael Gurian and Dakota HoytContemporary science, especially genetics and brain research, shows usthat at least these seven aspects of our children (and ourselves) are morehard-wired, or inborn, than we may have realized.Read more>> http://www.dukegiftedletter.com/articles/vol8no3_ee.html