TY - GEN AU - Ritchie,D G AU - Lee,A A AU - Gast,T J AU - Hill,R M TI - Is there a single cell code for background light levels? SN - 0014-4754 PY - 1975///0922 KW - Animals KW - Darkness KW - Light KW - Mesencephalon KW - physiology KW - Rabbits KW - Superior Colliculi KW - Time Factors KW - Visual Fields KW - Visual Pathways KW - Visual Perception N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1007/BF01944612 ER -