Recognize an object 2
An object will appear on the screen that is either too small or too big. The size of the object will vary until you recognize it.
Alternative: An object with either low or high opacity will appear on the screen. The opacity of the object will vary.
Stop the variation with the S-key.
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| Figure (detect, discover) |
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| Figure (detect, discover) |
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| Contrast |
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| Contrast |
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| Spatial Frenquency |
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| Optotypes (Landolt Rings, Tumbling E, Lea-Symbols) |
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| Central Motion |