1. School of Psychology and Sports Science, Bangor University, Brigantia Building, Bangor LL57 2AS, UK
2. School of Health Sciences, Bangor University, Fron Heluog Building, Bangor LL57 2EE, UK
3. North Wales Clinical Psychology Programme, Bangor University, Brigantia Building, Bangor LL57 2AS, UK
4. Dementia Research Centre, Queen Square Institute of Neurology, University College London (UCL), Queen Square, London WC1N 3BG, UK