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Recent theories of morphological processing have been dominated by the notion that morphologically complex words are decomposed into their constituents on the basis of their semantic properties. In this article we argue that the weight of evidence now suggests that the recognition of morphologically complex words begins with a rapid morphemic segmentation based solely on the analysis of orthography. Following a review of this evidence, we discuss the characteristics of this form of decomposition, speculate on what its purpose might be, consider how it might be learned in the developing reader, and describe what is known of its neural bases. Our discussion ends by reflecting on how evidence for semantically based decomposition might be (re)interpreted in the context of the orthographically based form of decomposition that we have described.
Rastle et al. (Sat,) studied this question.