In the Northwestern study, scalp electrodes pick up how children’s brains react to sounds such as speech in a noisy background. This unique biological approach allowed Nina Kraus and her colleagues at the Auditory Neuroscience Laboratory to evaluate children’s language development and future literacy potential. Image credit: Auditory Neuroscience Laboratory at Northwestern University.

More information in this source: http://neurosciencenews.com/literacy-potential-background-noise-2236/