1. Centre for Pain Research, University of Bath, Claverton Down Road, Bath BA2 7AY, UK
2. Department of Psychology, University of Bath, Claverton Down Road, Bath BA2 7AY, UK
3. Department of Sport & Health Sciences, University of Exeter, Prince of Wales Road, Exeter EX4 4SB, UK
4. Centre for Real & Virtual Environments Augmentation Labs, Department of Computer Science, University of Bath, Claverton Down Road, Bath BA2 7AY, UK