1. Psychology Department; Royal Holloway University of London; Egham Surrey TW20 0EX UK
2. Barnet, Enfield, and Haringey Mental Health NHS Trust; St Ann's Hospital; St Ann's Road, Tottenham London N15 3TH UK
3. Goldsmiths University of London; New Cross London SE14 6NW UK
4. Landspitali University Hospital; Eiriksgata 5, 3B Reykjavik 101 Iceland
5. Central and Northwest London Mental Health NHS Trust; 7a Woodfield Road London W9 2NW UK