Simulation of orientation preference in the LGS model. Above: Pattern of activation during two different stimulus presentations. Grey areas show the influence of either the local or global inputs. Red areas indicate activation due to both global and local input-mappings and the intrinsic patchy connections. Below: False colour map of orientation preference. Imposed upon this is the set of intrisic connections (thin black lines) from hexagon 54 (thick black lines). The patchy connections project to sites of similar orientation selectivity. The global pattern of these patchy connections overlies the visuotopic representation of a line which passes through hexagon 54 and has on orientation equal to the orientation preference of hexagon 54.