by Bakke, Peter, Carney, Nick, Deloache, Will, Gearing, Mary, Ingvorsen, Kjeld, Lotz, Matt, McNair, Jay, Penumetcha, Pallavi, Simpson, Samantha, Voss, Laura, Win, Max, Heyer, Laurie J, Campbell, A Malcolm
Published in PloS one (20.07.2009)