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Mind & Brain: Test (2)

Puzzling marbles


Mind test # 2 Difficulty level: bulbbulbbulb.

Two-color marble test
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Two-color marbles
Spot all the yellow-AND-blue marbles in the picture above. Time allowed 3 minutes! This test has been created by psychologists to demonstrate that in visual perception, search is very difficult when you have to find an object with a combination of two identical attributes (colors), than with more disparate attributes (color and form). This test is also a good test of some forms of color-blindness.

Related tests:
- Mind control?
- Visual memory test.

Source of the test:
Curiopticals, page 77. © G. Sarcone.
You cannot reproduce any part of this page without prior written permission.
You're encouraged to expand and/or improve this article. Send your comments, feedback or suggestions to Gianni A. Sarcone. Thanks!


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