TY - RPRT TI - A spherical model for orientation and spatial-frequency tuning in a cortical hypercolumn. AU - Paul C Bressloff AU - Jack D Cowan PY - 2003 DO - 10.1098/rstb.2002.1109 UR - https://pubmed.ncbi.nlm.nih.gov/14561324/ ID - 14561324 ER -