空間周波数の異なる運動間の相互作用 : 視聴覚技術

抄録

To Investigate interactions between movements of different spatial frequencies, we measured the perceived direction of a counterphasing sinusoidal grating (target) superimposed on a drifting grating (inducer). Target was perceived to move in the same direction as inducer (i.e., motion assimilation) when the spatial frequency (SF) of inducer was lower than target SF, and the temporal frequency (TF) of inducer was low. On the other hand, when inducer SF was higher than target SF, or when inducer SF was low but its TF and contrast were sufficiently high, target was perceived to move in the direction opposite to inducer (i.e., motion contrast).