The spectrum of eye movements includes reflexes that draw the eyes to objects of interest (which could be called visually driven attention), and precise voluntary movements that can occur even in the absence of visual input, in the dark or when the eyes are closed. (figure - cortical areas related to eye movements) The SC receives input from the early stages of visual processing, including the LGN, V1, and especially complex cells in V2. Control of Vergence Eye MovementsMost vergence movements are target driven. However it is possible for humans to emit disjunctive eye movements in the absence of visual input. The vergence system in the brain goes outside of the other oculomotor circuits, it is a separate set of pathways.Next: Self Organization |