TY - GEN AU - O'Toole,B I TI - Exposure-time and spatial-frequency effects in the tilt illusion SN - 0301-0066 PY - 1980///0128 KW - Humans KW - Illusions KW - Optical Illusions KW - Orientation KW - Pattern Recognition, Visual KW - Photic Stimulation KW - Space Perception KW - Time Factors N1 - Publication Type: Journal Article UR - https://doi.org/10.1068/p080557 ER -