Here is a fascinating "visual cognition" test. In the video pointed to below, your brain's ability to track multiple types of events that happen fairly rapidly will be tested. It takes about a minute; make sure you are not distracted; restarting the test is not a good idea. (It also helps to make sure the computer is lightly loaded - because the Java applet tends to freeze up easily - which may ruin the test).
In the video, a bunch of people will be passing and bouncing balls among themselves. Some of them are clad in white and some black. You are supposed to count the number of times the white people pass the ball to each other - count bounce passes and direct passes separately.
After viewing the video come back to read the rest of this post. You are in for a surprise: I guarantee it ;)
Click here for the web page with the video.
Are you done? Do you have the two counts ready? Are you sitting down? If yes, read more.
Did you notice anything unusual in the middle of the video? Any surprising, unexpected event? No? Are you sure? Now go back and see the video again - don't count anything now - just watch.
How does that feel? There is no trick in the computer. It's your brain that has tricked you! "Inattentional Blindness" is the name the researchers are giving this bug in our firmware. If you feel like you need a drink now, I understand ;)
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