Type of motion in inverted self-motion perception induced by a foreground stimulus.
Slowly moving foreground induces an illusory self-motion perception in the same direction as its motion direction (inverted vection). In this study, the effects of motion type of the foreground stimulus on inverted vection were investigated using a sample of 3 men and 1 woman. As indices of perceived strength of the inverted vection, duration and estimated magnitude were measured. Analysis of the psychophysical experiment indicated that a translating foreground induced inverted linear vection in the same direction as the stimulus motion. However, a rotating foreground did not induce an inverted roll vection. Statistical analyses indicate that there is a significant difference between two foreground motion conditions (Duration: t3=14.54, p <.01; Estimation: t3=16.92, p<.01). This result supports the hypothesis that eye-movement information is responsible for the occurrence of inverted vection.
Nakamura
Shinji
S
Faculty of Social and Information Sciences, Nihon Fukushi University, Handa, Aichi, Japan. shinji@n-fukushi.ac.jp
D000328:Adult; D004777:Environment; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D009039:Motion Perception; D009068:Movement; D012649:Self Concept; D014796:Visual Perception