1. Hirsch, H. V. B., & Leventhal, A. X-cell and Y-cell influenced neurons in the cat’s visual cortex following pattern deprivation. Paper given at the meetings of the Association for Research in Vision and Ophthalmology, Sarasota, Florida, 1976.
2. Van Sluyters, R. C. Personal communication, 1978.
3. Enroth-Cugell, C. Personal communication, 1978.