1 Academic Unit of Psychology, Developmental Brain-Behaviour Laboratory, University of Southampton, Southampton, UK; New York University Child Study Center, New York.
2 Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; the Center for Integrative Human Physiology and the Neuroscience Center Zurich, University of Zurich, Switzerland; and ETH Zurich.
3 LWL-University Hospital for Child and Adolescent Psychiatry, Ruhr University Bochum, Germany.
4 Academic Unit of Psychology, Developmental Brain-Behaviour Laboratory, University of Southampton, Southampton, UK; Ghent University, Ghent, Belgium and the Aarhus University, Aarhus, Denmark. Electronic address: ejb3@soton.ac.uk.