Harris, JulieVision Laboratory, School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9JP, Scotland, UK Nefs, HaroldVision Laboratory, School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9JP, Scotland, UK Grafton, CatherineVision Laboratory, School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9JP, Scotland, UK