Firing-rate based network modeling of the dLGN circuit: Effects of cortical feedback on spatiotemporal response properties of relay cells
Fig 4
Cortical feedback modulates the center-surround receptive fields of relay cells.
Upper left: the two dimensional spatial structure of the impulse-response function. Bottom left: one-dimensional plot of the impulse-response function. Center excitation and surround inhibition correspond to the maximum and minimum value of (r), respectively, while where the zero-crossing occurs is used as an indication for the receptive field size. Right: spatial impulse-response function for different circuit configurations. In each case all other contributions are removed, except feedforward excitation. Default parameters from Table 1 have been used.