1. Ageing and Dementia Research Centre, Bournemouth University, Poole, BH12 5BB, UK
2. Division of Nursing, School of Health Sciences, Queen Margaret University, Queen Margaret University Drive, Musselburgh, EH21 6UU, UK
3. Geriatric medicine, General Medicine, University Hospitals Dorset NHS Foundation Trust, Royal Bournemouth Hospital, Bournemouth, BH7 7DW, UK
4. Department of Psychology, University of Winchester, Winchester, UK