1. From Second Sight Medical Products, Inc., Sylmar, California; 2Department of Psychology, University of Washington, Seattle, Washington; and
2. Zilkha Neurogenetic Institute and
3. Doheny Eye Institute, University of Southern California, Los Angeles, California.
4. From Second Sight Medical Products, Inc., Sylmar, California;
5. Department of Psychology, University of Washington, Seattle, Washington; and