[1] Wilfrid Laurier Univ, Dept Psychol, Ctr Cognit Neurosci, Waterloo, ON N2L 3C5, Canada
[2] UCL, Inst Cognit Neurosci, London, England
[3] Univ London, Dept Psychol, Goldsmiths Coll, London, England
[4] Univ Cambridge, Dept Psychiat, Brain Mapping Unit, Cambridge, England