1. Visual Performance Laboratory, University of California San Diego, La Jolla, California, United States
2. Division of Biological Sciences, University of California San Diego, La Jolla, California, United States 3Department of Bioengineering, University of California San Diego, La Jolla, California, United States
3. Visual Performance Laboratory, University of California San Diego, La Jolla, California, United States 4California Institute for Telecommunications and Information Technology (Calit2), University of California San Diego, La Jolla, California, United States
4. California Institute for Telecommunications and Information Technology (Calit2), University of California San Diego, La Jolla, California, United States 5Department of Computer Science and Engineering, University of California San Diego, La Jolla, California, United States