1. Neuroscience Graduate Group, University of Pennsylvania, Philadelphia, PA, USA
2. xiaomao@sas.upenn.edu
3. Department of Psychology, University of Pennsylvania, Philadelphia, PA, USA
4. radonjic@psych.upenn.edu
5. cottaris@psych.upenn.edu
6. Department of Electrical Engineering, Stanford University, Sunnyvale, CA, USA
7. Current address: Google Research
8. hjiang36@gmail.com
9. Department of Psychology, Stanford University, Sunnyvale, CA, USA
10. wandell@stanford.edu
11. brainard@psych.upenn.edu