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There are endless exams and strange surveys designed to measure intelligence, but is this incredibly quick and simple task all we needed? A study from the University of Rochester created an exercise that tests the brain's unconscious ability to filter out visual movement - and it turns out that better perception is linked to intelligence. For example, people with higher IQs can tell which ways the objects are moving more quickly. So, if you throw a fast ball, intelligent people will theoretically pick up on its trajectory faster. On the other side of the coin, however, they also better at blocking out non-essential background information, which means they are worse at detecting large background movements. Full story

12 January