ABSTRACT

Developmental dyslexia is a disorder in the acquisition of written language that negatively affects word recognition and spelling (Lyon, Shaywitz, & Shaywitz, 2003). These difficulties are probably related to phonological disorders that disrupt the matching of graphemic units to phonemic units (Ramus, 2014; Snowling, 2000). Despite these phonological disorders, several studies show that dyslexic students do process the morphological structure of words in spoken and written language. The aim of this chapter is to show how and under what conditions dyslexic students process derivational morphemes when they are reading and writing them. 1