摘要:Written language production (spelling) plays an important role in our daily routines, used in tasks such as writing e-mail, taking notes, filling out applications, writing checks, etc. However, compared to reading and spoken language processing, relatively little research has been directed at understanding the neural substrates of spelling. Traditionally, deficit/lesion correlation studies have emphasized the role of the superior parietal cortex and the superior premotor region (also known as the Exner’s area). More recent work has added other critical regions including the leff inferior frontal gyms and the leff mid fusiform gyms, which may subserve orthographic processes recruited by both reading and spelling (see Rapp & Lipka in press or Roux et al., 2009). While these various regions have been implicated in the spelling process, their specific roles are not well understood. In this study, we examine the sensitivity of these writing substrates to the factors of lexical frequency and word length in order to frirther our understanding of their contributions to the written language production. Frequency effects are typically associated with lexical processes while length effects are assumed to reflect post-lexical processes including graphemic buffering.