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IQ & Motion Detection

June 20, 2013

The ability to track the motion of small objects is surprisingly well-correlated with IQ.

Transcript

BOB HIRSHON (host):

Visual tracking and IQ.  I’m Bob Hirshon and this is Science Update.

How people perform on a simple visual task is a surprisingly correlated with their IQ.  This according to University of Rochester neuroscientist Duje Tadin and his colleagues.  In the task, objects moving left or right would appear on a screen.  The volunteers had to say which way they were moving.

DUJE TADIN (University of Rochester):

And we measured how long the movie has to be on the screen before the subjects can actually tell the motion direction.

HIRSHON:
People with higher I.Q.s could do this much more quickly – if the objects were small.  That suggests they’re better at tracking relevant information and filtering out the background – which might help them with all kinds of thinking.  Interestingly, when the objects were nearly as large as the background, people with higher I.Q.s actually performed worse – perhaps because tracking the background fights against their abilities.  I’m Bob Hirshon for AAAS, the Science Society.