scholarly journals Manipulating interword and interletter spacing in cursive script: An eye movements investigation of reading Persian

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Ehab W. Hermena
Keyword(s):  
Eye Movements ◽  
Reading Speed ◽  
Reading Rate ◽  
Word Boundary ◽  
Experimental Conditions ◽  
Interword Space ◽  
Cursive Script ◽  
Boundary Information

Persian is an Indo-Iranian language that features a derivation of Arabic cursive script, where most letters within words are connectable to adjacent letters with ligatures. Two experiments are reported where the properties of Persian script were utilized to investigate the effects of reducing interword spacing and increasing the interletter distance (ligature) within a word. Experiment 1 revealed that decreasing interword spacing while extending interletter ligature by the same amount was detrimental to reading speed. Experiment 2 largely replicated these findings. The experiments show that providing the readers with inaccurate word boundary information is detrimental to reading rate. This was achieved by reducing the interword space that follows letters that do not connect to the next letter in Experiment 1, and replacing the interword space with ligature that connected the words in Experiment 2. In both experiments, readers were able to comprehend the text read, despite the considerable costs to reading rates in the experimental conditions.

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