Remedial programs for students with dyslexia often succeed only in making bad readers into slightly better bad readers. Now a new study shows that more aggressive treatment can make dyslexic brains work the way normal brains do, activating a region that plays a vital role in reading fluency. Good and bad readers handle tasks differently, brain scanning research has shown, from the processing of sound to the recall of vocabulary. Last year, a study showed that dyslexic students who were tutored with typical methods made limited gains but continued to use cumbersome mental pathways. The new study, to be published...