1 Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, UK. Electronic address: joseph.firth@postgrad.manchester.ac.uk.
2 KU Leuven Department of Rehabilitation Sciences, Leuven, Belgium; KU Leuven Department of Neurosciences, UPC KU Leuven, Leuven, Belgium.
3 Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
4 Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, UK; Greater Manchester West NHS Mental Health Foundation Trust, Manchester, UK.
5 Physiotherapy Department, South London and Maudsley NHS Foundation Trust, London, UK; Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.