Confidence in Expressing Novel Textures: An Analysis of Japanese Ideophones that Describe Visually-Induced Textures

Although a close relationship between the emergence of a new expression and that of either a new object or concept is presupposed in linguistic analysis, the correlation has not been pursued thoroughly. This paper investigates how people respond to different novel textures within language. We carried out an experiment using an application that displays visually- induced texture. Participants were presented with two types of novel texture: one had a time delay between touching and the texture's response to this and the other did not. Participants were asked to describe the texture with ideophones (sound symbolic words) in Japanese. We observed what kinds of ideophones were used and the confidence with which they were expressed, which produced two results. First, there was a significant difference between the two texture types regarding confidence. For the texture with a delay, active touch was required for subjects to express it with a high level of confidence. Second, when the expressions were made with high confidence, the texture with a delay was expressed with significantly more unconventional ideophones than that without delay.