Fig 8. Shift from low-pass to band-pass characteristics is seen in spatial frequency tuning of relay cells when increasing stimulus patch size.

Wavenumber (|k_pg|) tuning of relay cells, using patch grating at two different patch sizes (rows), is shown for different feedback configurations (columns). the patch diameters are 1.5 deg (top row) and 10 deg (bottom row), respectively. Default values from Table 1 have been used for fixed parameters.