Grafman wanted to understand what factors most affected recovery from frontal lobe injuries, so he began to examine how a soldier’s health, genetics, social status, and intelligence prior to his injury might predict his chance of recovery. Since everyone in the service has to take the Armed Forces Qualifications Test (roughly equivalent to an IQ test), Grafman could study the relationship of preinjury intelligence to that after recovery. He found that aside from the size of the wounds and the location of the injury, a soldier’s IQ was a very important predictor of how well he would recover his
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Iq is associated with faster recovery periods.
