“…Among the theoretical issues raised by stereoscopic depth perception and fusion of binocularly disparate images was the extent to which stereoscopic vision was a consequence of eye movements (Ono, Lillakas, & Wade, 2007). Brücke (1841), Prévost (1843), Brewster (1844a), Towne (1869), and LeConte (1881, 1897) proposed eye movement interpretations, despite Wheatstone's description of stereoscopic depth with paired disparate afterimages. According to Brücke, the variations in convergence with successive fixations built up the impression of depth and singleness.…”