2010 年 29 巻 1 号 p. 79-80
The radial optic flow sensitivity during locomotion was tested in 4 experiments. The results of the experiments indicated that the optic flow sensitivity was significantly lower in the condition where the visual and vestibular sensory inputs were congruent for the ego-motion direction rather than in the condition where the visuo-vestibular inputs were incongruent. These results suggest that the optic flow sensitivity is suppressed during locomotion when the relationship of the visual and vestibular sensory inputs is in a normal state.