According to Murasugi and Fuji (2009) and Murasugi et al. (2010), not only Root Infinitive Analogues (children's overuse of a past morpheme) but also children's limited use of a Nominative Case marker are observed in child Japanese at an early stage. However, further examination of four one-year-olds' utterances in CHILDES suggests that Root Infinitive Analogues themselves seem to be quite rare in child Japanese, and that there seems to be an independent reason for children's limited use of the Nominative Case marker. Thus, this study casts doubt on the claim that the two phenomena come from the same source, that is, deficits in T.
Proceedings of the 6th Conference on Generative Approaches to Language Acquisition North America (GALANA 2015)
edited by Laurel Perkins, Rachel Dudley, Juliana Gerard, and Kasia Hitczenko
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