Simone Bosbach, Wolfgang Prinz, & Dirk Kerzel
A Simon-effect with stationary moving objects
Journal of Experimental Psychology: Human Perception and Performance, 30(1), 39-55.
Download the paper from my publications page.
Sample Stimuli
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Experiment 1 A drifting sine-wave grating with low spatial frequency. The grating is windowed by a Gaussian. (450 KB) |
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Experiment 1 A drifting sine-wave grating with high spatial frequency. The grating is windowed by a Gaussian. (450 KB) |
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Experiment 2 A drifting sine-wave grating with medium spatial frequency. The grating is windowed by a Gaussian. In a circular aperture, the stimulus changes its color. (880 KB) |
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Experiment 3 Each cross in the stimulus is shown for one refresh cycle, and after about 60 ms, it reappears. In the demo, the probability of a single dot to be displaced toward the right was 21%. Unfortunately, the demonstration (7.7 MB) is not very compelling. W. T. Newsome devised some quicktime-movies that are better suited to demonstrate the general principle: newsome_demo.mov (2.1 MB), Newsome-Website |
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Experiment 4 An upright point-light walker that changes its color after a certain time. The motion was generated with Cutting's classic algorithm. The figure is walking in place and the direction of the movements is clearly to the left. (2.1 MB) |
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Experiment 4 An inverted point-light walker that changes its color after a certain time. Most observers have a hard time recognizing the walker. (2.1 MB) |
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Experiment 5 A scrambled point-light walker that moves toward the left. Viewed statically, the direction of motion cannot be derived from the shape of the walker. However, when set in motion, the direction of the movement can be detected. (1.8 MB) |