The new test is called bio-map.
Three electrodes are used to monitor the brain's response to a pattern of sounds that children hear while watching a movie.
Researchers get results almost immediately. Based on brain wave patterns, researchers can tell whether the child accurately processes the sound.
Bio-map was developed after 10 years of research and the testing of 1000 children at northwestern university. It will be made available in early 2006 and should be covered by insurance.
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