1. Vision Science Graduate Group, University of California, Berkeley, Berkeley, CA 94720, USA
2. Department of Psychology, University of California, Berkeley, Berkeley, CA 94720, USA
3. Institute of Sociology and Social Psychology, University of Cologne, Albertus-Magnus-Platz, D-50923 Cologne, Germany
4. School of Psychology, King’s College, University of Aberdeen, Aberdeen AB24 3FX, UK
5. Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA