A Cognitive Linguistics Study on Japanese Polysemous Constructions and their Treatment in Japanese Textbooks

研究成果の概要 (和文) : 「全然」「なので」「てゆうか」「けど」といった日本語表現を取り上げ、その意味や用法の変遷に関して、青空文庫にある近代日本語小説や太陽コーパス、2ちゃんねる掲示板などの書き込みデータから調査・検証した。そして、その意味や用法が変化した原因について、認知言語学や構文文法、語用論といった視点から説明を試みた。研究成果の概要 (英文) : I picked up some Japanese expressions such as zenzen, nanode, tteyuuka, kedo, the meanings and usages of which have changed in these 100 years, and made some investigations into how they change their meanings and usages through various corpus data like novels on "Aozora-Bunko", "Taiyo corpus", and BBS data on the web. Based on these data, I finally explained how and why new meanings and usages have grown from the viewpoint of Cognitive Linguistics and Construction Grammar