Figure 6. Models of intuitive guess.

A theoretical model (upper) proposes that the lower-order visual region rapidly projects the information of blurred images to the orbitofrontal region possibly via the magnocellular pathway, and deliver a top-down signals back to the occipital-temporal region including the fusiform gyrus to facilitate visual recognition (Bar et al., 2006; Kveraga et al., 2007). The present study supports the model (lower) that guessing processes in the visual domain take place in the frontal-parietal regions (not necessarily confined to the orbitofrontal regions) following the accumulation of sensory evidence resulting from the bottom-up processing between the lower- and higher-order visual pathways (Ploran et al., 2007; Heekeren et al., 2008).