(英) |
It has been reported that visually induced self-motion perception (vection) is enhanced by another self-motion cue, for example somatosensory or vestibular cue. In this study, we investigated whether a sensory information, which is not related with self-motion originally, can be recruited as a new cue for self-motion. In the learning phase of an experimental trial, stimulus color changed depending on the acceleration of body rotation about the yaw axis. The stimulus color changed to red when subjects rotated with clockwise acceleration and to green when subjects rotated with counterclockwise acceleration, or vice versa. In the measurement phases before and after the learning phase, subjects viewed the rotating stimulus with or without new self-motion (color) cue and responded the latency and intensity of vection. The results showed that the color information accompanied with self-motion affected the latency of vection, suggesting that new self-motion cue (color information, in this study) could contribute to generate occurrence. |