Separated visual field representations on the early visual cortex. Because of the contralateral dominance of primary visual sensory organization, cortical representation of an annulus changes remarkably depending on its position in the visual field. When an annulus appears entirely within the left visual field, its representation in the right hemisphere is also a complete annulus. Yet, when an annulus is presented across the vertical meridian, its representation in each hemisphere forms a fragmented half annulus (Schiller, 1997). Note that the same solid annulus can readily be perceived in both cases in our daily life. How does our brain integrate two split projections into a whole and coherent percept as we see in everyday life?