Tony Greenwald, Mark Oaks, Hunter Hoffman and 100+ student participants work on unconscious racial stereotypes that appeared in the Journal of Experimental Social Psychology, on NPR

http://www.kuow.org/Full_News_Story.asp?NewsPage_Action=Find('ID','1194', and in University Week http://admin.urel.washington.edu/uweek/archives/issue/uweek_story_small.asp?id=1249 .