TY - RPRT TI - Energy model for contrast detection: spatial-frequency and orientation selectivity in grating summation. AU - V Manahilov AU - W A Simpson PY - 2001 DO - 10.1016/s0042-6989(01)00034-7 UR - https://pubmed.ncbi.nlm.nih.gov/11343721/ ID - 11343721 ER -