1. Department of Psychology, New Mexico Tech, Socorro, New Mexico, United States
2. Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa, United States
3. Institute for Vision Research, University of Iowa, Iowa City, Iowa, United States
4. Pediatrics, University of Iowa, Iowa City, Iowa, United States
5. Ophthalmology and Visual Sciences, University of Louisville, Louisville, Kentucky, United States
6. Molecular Physiology and Biophysics, University of Iowa, Iowa City, Iowa, United States
7. Biology Department, College of St. Benedict & St. John's University, Collegeville, Minnesota, United States
8. VA Center for Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
9. Unit on Retinal Neurophysiology, National Eye Institute, Bethesda, Maryland, United States
10. Center for Neurosciences and Behavioral Medicine, Children's National Medical Center, Washington, DC, United States
11. George Washington University School of Medicine and Health Sciences, Washington, DC, United States