Study of Japanese Sign Language Semantic Process based on N400 Analysis

We study efficient automatic generation and communication of the Japanese sign language image. Therefore, it is necessary to study language processing mechanism of the sign language of the deaf people. This study describes the method for examining semantic analysis process of sign language using N400 which is a component of event related potentials. From two experiments, N400 amplitude was high in a specific semantic processing. Moreover, it was higher in the character presentation than in the sign language presentation. It is considerated that the the acceptance or the set are different according to type of language or modality though the same content is presented.