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Shorter Lines Facilitate Reading in Those Who Struggle

Figure 13

Proposed mechanism driving regression.

During reading a short gaze shift is made from the word “severe” in the first fixation, to “dyslexia” in the second. We suggest that due to attention deficits, the word “severe,” left of fixation, is perceived even after the fixation has advanced. However, because this word is now in the periphery, crowding alters its percept. If this sudden change in orthographic percept triggers a cognitive dissonance that calls the word’s previous interpretation into doubt, this can encourage a regressive saccade to re-inspect the word. We refer to this process as a “crowding induced regression (CIR).”

Figure 13