TY - GEN AU - Mareschal,Isabelle AU - Shapley,Robert M TI - Effects of contrast and size on orientation discrimination SN - 0042-6989 PY - 2004///0224 KW - Contrast Sensitivity KW - physiology KW - Differential Threshold KW - Fovea Centralis KW - Humans KW - Orientation KW - Sensory Thresholds KW - Size Perception KW - Visual Fields N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1016/j.visres.2003.07.009 ER -