Motion capture and the 'Ouchi' effect.
OBJECTIVE
The role of motion contrast and motion capture in the 'Ouchi' effect was investigated in a simplified stimulus.


METHODS
Sinewave gratings were rapidly oscillated vertically within two concentric stationary 'apertures', an inner disc surrounded by an annulus.


RESULTS
A strong illusion of relative motion between the disc and annulus is observed in the horizontal direction for 8 and 12 cycles/deg given small orientation differences between the two gratings.


CONCLUSIONS
These parameters coincide with those of the 'Ouchi' effect, suggesting a sharing of the same causal mechanism.
School of Applied Psychology, Griffith University, Nathan, Queensland, Australia. t.hine@hbs.gu.edu.au
T J
TJ
Hine
M
M
Cook
J M
JM
Zanker
D000328:Adult; D015350:Contrast Sensitivity / Q000502:physiology*; D006801:Humans; D007088:Illusions; D009039:Motion Perception / Q000502:physiology*; D013028:Space Perception / Q000502:physiology