Difference of Shape Constancy in Upper and Lower Visual Fields

Functions of human vision have been developed to adapt to ecological restrictions. Especially, the position in early vision is neurophysiologically different between objects in the upper visual field (UVF) and in the lower visual field (LVF). In recent years, we have studied the relationship between shape constancy and eye movement. In this study, we investigate differences of shape constancy in the UVF and in the LVF.