Effects on Support Acceptability of Japanese Speech Characteristics of Driver Assistance Robot

Abstract

In this paper, experiments were conducted to investigate the effect of speech characteristics in Japanese of a driver assistance robot on the degree, support acceptability, to which human beings accept advice from the robot. The results showed that lowering the pitch of Japanese postpositions and sentence endings increased the impression of intelligence, and raising the pitch of them increased the impression of anthropomorphism. Moreover, a positive correlation between intelligence and support acceptability was observed from subjects in whom anthropomorphism occurred.