This study examined Japanese-speaking mothers' passives in the child-directed speech from the CHILDES database. We selected five parent-child corpora and analyzed the overall distribution of the mothers' passives and further investigated the contribution of the construction and the passivized verbs to sentence meaning. The findings were as…

The present study investigated the role of morphosyntactic information in the acquisition of transitive and intransitive verb argument structures (VAS) in the Japanese language, which allows massive omissions of arguments and case markers. In particular, we investigated how the 'variation sets' proposed by Küntay and Slobin work in Japanese.…

This study examines the role of agency in a young trilingual child's language choice in interaction with her Mandarin-speaking grandparents. The child was born in Japan to a Chinese mother and a Japanese father. English is used as a lingua franca in the family. The study demonstrates how the child asserts her agency to negotiate the decisions and…

The development of metalinguistic awareness for linguistic politeness was examined in 68 Japanese-speaking children aged between three and five years old. A politeness judgement task was administered together with several phonological judgement tasks and false-belief tasks. Four- and five-year old Japanese children, but not three-year-olds, made…