Review Article

Are Visual Peripheries Forever Young?

Figure 1

The main projection pathways of the primate visual system. Temporal retina receives visual input from the nasal half of the visual field, whereas nasal retina receives input from the temporal half of the visual field. The optic nerves deriving from the temporal half of the retina (black line) project ipsilaterally, whereas the nasal nerves (white line) cross at the optical chiasm and project to the contralateral hemisphere. Most of the visual fibers reach the visual cortex through relay synapses located at the dorsal lateral geniculate nucleus (dLGN) in the thalamus. A smaller percentage of visual fibers reach the primary visual cortex (V1) through the superior colliculus (SC) and pulvinar (Pulv.).