The functions of spaces between words in adult reading of text were investigated in three experiments. Results were consistent with a two-process theory in which filling parafoveal spaces disrupts guidance of the next eye movement and filling foveal spaces disrupts processing of the fixated word as well. (Author/RD)

Subjects instructed to circle misspellings while reading prose were less likely to detect misspellings in function than in content words. Misspellings that changed the shape of a word were more likely to be detected. It is not clear whether differences between function and content words are due to familiarity or redundancy. (Author/RD)