事象関連電位N400計測に基づく日本手話理解における意味処理分析

抄録

Physiological examination of language comprehension mechanism of the sign language is necessary in order to study language recognition, video communication, animation generation of JSL (Japanese Sign Language), or sign language education. In this paper, the semantic deviation sentences and the meaningless operations were sampled. These sentences were played by a native JSL speaker, and was recorded and edited. Then, the trigger frame of the stimulation start was analyzed, and N400event related potential was measured. As the result, N400in semantic deviation word of JSL was increased in comparison with the meaningless operation, though the individual difference existed. Next, semantic analysis process during the signing and on the reading were examined. As the result, N400increased in both of the signing and the reading in the semantic incongruity, and the button reaction time in the signing increased in comparison with the reading. Thus, the effect of the modality of the language was considered. In addition, on a hearing and a deaf, cerebrum activity of the processing of letter was estimated by Focus, and the difference between the semantic process was observed. The analysis procedure of semantic analysis mechanism of the deaf was examined, and some qualitative fact was confirmed.