1. School of Computing, University of Kent , Canterbury, Kent CT2 7NF, UK
2. Department of Psychology, University of Birmingham , Birmingham B15 2TT, UK
3. School of Psychiatry , Faculty of Medicine, University of New South Wales, Kensington, NSW 2052, Australia
4. Wellcome Centre for Human Neuroimaging, and Max Planck University College London Centre for Computational Psychiatry and Ageing Research, 12, Queen Square, University College London, London WC1N 3AR, UK
5. Consciousness, Cognition & Computation Group, Center for Research in Cognition & Neuroscience, ULB Neuroscience Institute, Université libre de Bruxelles , 50 ave. F.-D. Roosevelt CP191, Brussels B-1050, Belgium
6. School of Arts, University of Kent , Jarman Building, Canterbury, Kent CT2 7UG, UK