In this paper, we present a roughness modulation technique that employs electrotactile augmentation to alter material texture per- ception, which is conducted through mechanically unconstrained touch. A novel electrotactile augmented reality system that superimposes mod- ulating nerve activity onto afferent nerves at the middle phalanx of a fin- ger is described. We conducted a user study in which participants were requested to rate the roughness of real materials that were explored using the system. The results indicated that participants could perceive the mod- ulated fine- and macro-roughness via the electrotactile augmentation.
['Shunsuke Yoshimoto', 'Yoshihiro Kuroda', 'Yuki Uranishi', 'Masataka Imura', 'Osamu Oshiro']
Roughness Modulation of Real Materials Using Electrotactile Augmentation