McConkie, G. W., & Zola, D. (1979). Is visual information integrated across successive fixations in reading?. Perception & Psychophysics, 25(3), 221-224.

College students read a passage presented in AlTeRnAtInG cAsE on a CRT while their eye movements were monitored. During certain saccades, the case of every letter was changed (a became A, B became b). This change was not perceived and had no effect on eye movements. Apparently visual features of the type which specify the difference between upper- and lowercase letters are not integrated across fixations during reading.

 

 

McConkie, G. W., & Zola, D. (1979). Is visual information integrated across successive fixations in reading?. Perception & Psychophysics, 25(3), 221-224.

https://doi.org/10.3758/BF03202990