[1] Department of Psychology and Speech Pathology, Manchester Polytechnic, Manchester M13 0JA, Elizabeth Gaskell Building, Hathersage Road
[2] Mental Health Unit, Walsgrave Hospital, Coventry
[3] Department of Psychiatry, Manchester Royal Infirmary
[4] Department of Psychiatry, High Royds Hospital, Ilkley
[5] Department of Psychiatry, Bridgewater Hospital, Eccles
[6] Department of Psychiatry, University Hospital of South Manchester
[7] Mental Handicap Services, Calderstones Hospital, Blackburn