1. Kissileff Laboratory, School of Psychology, University of Liverpool, Liverpool, UK,
2. Kissileff Laboratory, School of Psychology, University of Liverpool, Liverpool, UK
3. Kissileff Laboratory, School of Psychology, University of Liverpool, Liverpool, UK, Department of Psychology, Staffordshire University, Staffordshire, UK
4. School of Clinical Sciences, Clinical Sciences Centre, University Hospital Aintree, Liverpool, UK
5. h Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK
6. Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK