Effects of spatial disruptions on reading speed for fast and slow readers.

Forty-five subjects read three paragraphs at their normal reading speed and were timed. The first paragraph was presented normally, and the others were shown either with spaces that had been filled in or with spaces that were randomized in size. The subjects' initial reading speed declined with both alterations, but to a greater extent with the filled text. Moreover, the reduction in reading speed was greater for the 10 fastest readers than for the 10 slowest readers. This pattern of performance may reflect a floor effect with slower readers in the filled condition, but the authors interpreted the results as providing further support for Hochberg's peripheral search guidance (PSG; 1970) stage of reading.