1. Department of Experimental Psychology, University of Oxford, Anna Watts Building, Radcliffe Observatory Quarter, Oxford, OX2 6GG, United Kingdom
2. Department of Engineering Science, University of Oxford, Oxford e-Research Centre, 7 Keble Road, OX1 3QG, Oxford, United Kingdom
3. Department of History, Durham University, 43 North Bailey, Durham, DH1 3EX, United Kingdom
4. Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
5. Department of Electronic Engineering, Royal Holloway, University of London, Egham Hill, Egham, TW20 0EX, United Kingdom