1. Research Assistant, Department of Psychology, Health Psychology Section, Institute of Psychiatry, King's College London, 5th Floor Thomas Guy House, Guy's Campus, London SE1 9RT, UK
2. Clinical Governance Co-ordinator, Monklands/Cumbernauld Clinical Management Team, Lanarkshire, UK
3. Lecturer, Human Communication and Deafness, University of Manchester, UK
4. Professor, Human Communication and Deafness, University of Manchester, UK
5. Professor, Department of Psychology, Health Psychology Section, Institute of Psychiatry, King's College London, 5th Floor Thomas Guy House, Guy's Campus, London SE1 9RT, UK