1. School of Psychology, University of Aberdeen, King's College, Aberdeen, UK
2. mauro.manassi@abdn.ac.uk
3. Center for Information and Neural Networks, National Institute of Information and Communications Technology, Osaka, Japan
4. ymurai@nict.go.jp
5. Department of Psychology University of California, Berkeley, CA, USA
6. Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA
7. Vision Science Group, University of California, Berkeley, CA, USA
8. dwhitney@berkeley.edu