“…Arabic orthography when dealing with similar graphemes and different graphemes have been extensively discussed in the work of Buckwalter (2004); and Ibrahim, Eviatar, and Aharon-Peretz (2002) who argued that the complexity imposed by the use of different marks (diacritics) could potentially influence readers' visual recognition of words. This has led many scholars to deeply investigate and examine the effects of using different Arabic structures on readers' cognitive responses, and their potential for improving reading skills (Crossley, Skalicky, Dascalu, McNamara, & Kyle, 2017), increasing comprehension (Primor, Pierce, & Katzir, 2011), and reducing reading errors (Natour, Darawsheh, Sartawi, Marie, & Efthymiou, 2016;Schimmel & Ness, 2017). However, most previous efforts have not truly justified the role of these characteristics in stimulating brain activation while reading under different conditions.…”