Figure A4.

Results of Experiment 3 from all five subjects (A) and each of them (B), with the same conventions as those for Figures A1 and A2. The two bars in the left panel presented the results obtained using balanced edge formed by motion direction differences (Group 1:1). The two bars in the right panel were results obtained using unbalanced (Group 1:4) edge formed by motion direction differences, with more feature contrast in the right half of stimuli (the side of the white object) than in the alternative half (the side of the black object). Note that data for all stimuli of one group, mirror images, and polarities of motion directions for were combined for each bar. (A) The averaged perception of figure from all five subjects. There was significant modulation on the DOF perception with dependence on attention to the specific direction of motions regardless of the sets of test stimuli (P < 0.01). (B) Results of the Experiment 3 for each subjects. Subjects D, E, and F indicated the significant modulations of the DOF perception with dependence on attention conditions (D, E, F: P < 0.01). Other subjects did not show the significant attention modulations for DOF perception (G: P = 0.53, H: P = 0.49).