1. National Psychosis Service, South London and Maudsley NHS Foundation Trust, UK
2. Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, 16 De Crespigny Park, London, SE5 8AF, UK
3. Institute of Psychiatry, Psychology and Neuroscience, King’s College London, UK
4. National Psychosis Service, South London and Maudsley NHS Foundation Trust, UK. University of Iceland, Iceland
5. National Psychosis Service, South London and Maudsley NHS Foundation Trust, UK. Institute of Psychiatry, Psychology and Neuroscience, King’s College London, UK