Reading requires both visual and linguistic processing.
Much current research suggests that phonological factors play a causal role in developmental dyslexia. Yet many studies demonstrate visual processing differences in individuals with dyslexia, including sensitivity to contrast, motion or rapid changes in visual displays. It is unclear how or whether these findings can account for difficulty in reading. I am investigating how variations in luminance contrast and letter positions in words affect reading speed of dyslexic and average readers. The puzzle of visual stability is how we perceive a stable world despite the rapid shifts of gaze that accompany saccades.