“…The preference for natural images is a consequence of the local phase-selectivity of the individual neuron, achieved by the symmetry and bandwidth of the neuronal receptive field (Hubel & Wiesel, 1962;Movshon et al, 1978a,b;Field & Tolhurst, 1986;Gaska et al, 1987;Jones et al, 1987;Pollen et al, 1988;Mechler et al, 2002Mechler et al, , 2007Ringach, 2002Ringach, , 2004Felsen et al, 2005). In natural images, and for each local feature, the local phase congruency between harmonics is higher than in random patterns (Burr et al, 1989(Burr et al, , 1992Morrone et al, 1993;Martini et al, 1996;Perna & Morrone, 2007).…”