1. Psychology Division, Faculty of Natural Sciences, University of Stirling, Stirling, UK
2. ross.goutcher@stir.ac.uk
3. Computing Science and Mathematics Division, Faculty of Natural Sciences, University of Stirling, Stirling, UK
4. christian.barrington@stir.ac.uk
5. Department of Psychology, University of Essex, Colchester, UK
6. phibbard@essex.ac.uk
7. bruce.graham@stir.ac.uk