Academic performance is a favorite area for research on biofeedback.  There are very few interventions that raise IQ, but neurofeedback has a very good record for increasing intelligence. 

According to Joel Lubar, Professor of psychology at the University of Tennesee, a neurofeedback meta study would show 12 IQ points were gained during training. 

That is, when he averaged the IQ test results from all the neurofeedback studies, he found a 12 point increase in intelligence across all subjects.  He reports that it doesn’t matter whether you are high or low on the IQ scale, 12 points is available with neurofeedback training. 

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