The crowding factor method applied to parafoveal vision.

摘要: Crowding increases with eccentricity and is most readily observed in the periphery. During natural, active vision, however, central vision plays an important role. Measures of critical distance to estimate crowding are difficult as these distances small. Any overlap flankers target may create overlay masking confound. The factor method avoids this issue by simultaneously modulating size flanker using a ratio compare crowded uncrowded conditions. This was developed applied periphery (Petrov & Meleshkevich, 2011b). In work, we apply characterize parafoveal (<3.5 visual degrees) spatial uncertainty. We find that hemifield have less impact on than periphery, yet radial/tangential asymmetries clearly preserved. There considerable idiosyncratic differences between participants. provides powerful tool for examining peripheral which will be useful future studies seek understand processing under viewing