Does bimanual grasping of the Müller-Lyer illusion provide evidence for a functional segregation of dorsal and ventral streams?

► Perception-action dissociation found with bimanual grasping under full vision. ► If vision is removed during grasping, the dissociation vanishes. ► Visual feedback during movement is critical, not a dorsal/ventral dissociation. ► Bimanual designs have the drawback that the hands' responses are not independent.