Test of 'Motion Quotient' predicts your IQ

This video administers a simple test which researchers at the University of Rochester say they have devised to predict IQ. Watch video clips of black and white bars moving across the screen and try to determine which direction the bars are moving.
Images of different sizes were presented on the screen and the researchers measured the time it took for participants to register the direction in which the bars moved. According to the researchers, because the brain is able to filter out background movement most people find it difficult to see movement in the larger images.

Melnick and his colleagues, in a paper titled: "A Strong Interactive Link between Sensory Discrimination and Intelligence," published in the journal Current Biology, found that people with higher IQs were the worst at seeing movement in the large images, that is, they performed best at filtering out distracting sensory signals. They found that the simple visual test was a very good predictor of the performance of participants in standardize intelligence or IQ tests.
Generally, people with higher IQs are quicker at processing sensory stimuli. However, the researchers argued that processing speed alone could be a poor match for information processing demands on the brain system.