Ayumi Matsuo

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About

Ayumi Matsuo is a leading figure in developmental psycholinguistics, best known for her groundbreaking work on how children acquire and interpret empty categories in syntax. Her research bridges theoretical linguistics and language acquisition, with a particular focus on cross-linguistic differences between English and Japanese. In her most-cited paper, "Differing Interpretations of Empty Categories in English and Japanese VP Ellipsis Contexts" (2007, 61 citations), Matsuo demonstrated that children must master two distinct cognitive tasks to achieve adult-like interpretations of verb phrase ellipsis—a process that unfolds differently depending on the structural properties of their native language. This work has had a lasting impact on theories of syntactic development and the role of universal grammar in first language acquisition. Beyond this landmark study, Matsuo has contributed to research on scrambling, scope interpretation, and the processing of null arguments, often using experimental methods to test predictions from generative grammar. Her findings have informed how we understand the interplay between syntax, semantics, and pragmatics in developing minds. For students and researchers in language acquisition, Matsuo’s work offers a compelling model of how careful cross-linguistic comparison can reveal the hidden architecture of early grammatical knowledge.