CHILDES Japanese NINJAL-Okubo Corpus

	National Institute for Japanese Language and Linguistics Tachikawa, Hiroshima, Japan website
	Susanne Miyata Department of Medical Sciences Aichi Shukotoku University smiyata@asu.aasa.ac.jp website

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Citation information

• Kokuritsu Kokugo Kenkyujo. (1981-1983). Yoji no kotoba shiryo [A Record of Child-Mother Speech] (I-VI). Tokyo: Shuei Shuppan.

In accordance with TalkBank rules, any use of data from this corpus must be accompanied by the above references.

Project Description

The NINJAL-Okubo data were collected by the National Institute for Japanese Language and Linguistics for the purpose of observation of the language and acquisition behaviour of pre-school children. The study was conducted by Ai Okubo. The data consist of the speech of a first-born boy in Tokyo (Taachan, born March 3, 1974) between his first and fourth birthday and were collected in cooperation with his mother over a three-year period starting in 1975, The study contains data of about two hours per month, recorded on several days during the month. The transcription is based on cassette tape recordings (Sony TC 1000B), and was performed by the mother. Explanations of the situation were added where necessary. The child’s utterances are transcribed close to actual pronunciation.

The data are published in 6 volumes:

I : Part 1. 24 Hour Record of Utterances of a Child Recorded on his Second Birthday

Part 2. 24 Hour Record of Utterances of a Child Recorded on his Third Birthday

II: 24 Hour Record of Utterances of a Child Recorded on the Day before his Fourth Birthday

III: A Case Study of a Child's Utterances from 1;0 to 1;11 Years

IV: A Case Study of a Child's Utterances from 2;0 to 2;11 Years

V: A Case Study of a Child's Utterances from 3;0 to 3;5 Years

VI: A Case Study of a Child's Utterances from 3;6 to 3;11 Years

The numbers on the @G line indicate the volume, the page and the card number. The adaptation to the CHILDES format was performed by Susanne Miyata (Aichi Shukutoku University).

Acknowledgements

Susanne Miyata reformatted this corpus into accord with current (2020) versions of CHAT.

A part of the work concerning this corpus has been supported by the NINJAL project "Development of and Research with a parsed corpus of Japanese" and by JSPS KAKENHI (Grant Number JP 15H03210).