Modeling of developmental change of children's worked acquisition rules -emergence of the usage of the category knowledge based on word order information

摘要

It is said that children accelerate their acquisition speed of language by applying some rules called learning bias and narrowing the possibility of mapping between an object and a word. Among learning biases, the taxonomic bias is important from the viewpoint that children can learn the extendibility of word meaning, but its fundamental mechanism is not known. Then, in this study, we try to explain the phenomenon by modeling brain processing from an object recognition to language recognition, and to discuss its calculation process. If we make use of a correlation information of the grammatical usage on two or more objects (noun) that belong to the same category, we can extract a category information of the noun even if the appearance of the objects differs, and explain how the process realizes the taxonomic bias like behavior.