| |
Abstract:
A slowly moving foreground with an orthogonally moving
background can induce self-motion perception in the same direction as the
foreground motion (inverted vection; Nakamura & Shimojo, Vision
Research, 40 (2000) 2915). In the present study, we investigate the
effect of sustained gaze deviation on inverted vection. We hypothesized
that gaze deviation affects eye-movement information registered in the
perceptual system, which might be a primary factor for causing inverted
vection. The experiment revealed that strength of inverted vection
decreases with observer's gaze deviation in the same direction as the
foreground motion, while it increases with the deviation in the opposite
direction to the foreground. These results support our hypothesis and
suggest that inverted vection is affected by eye-movement information.
|