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Neurosci Lett. 2002 Feb 15;319(2):111-5.

Deficits in auditory brainstem pathway encoding of speech sounds in children with learning problems.

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Communication Sciences, 2299 North Campus Drive, Frances Searle Building, Northwestern University, Evanston, IL 60208, USA.


Auditory brainstem responses were recorded in normal children (NL) and children clinically diagnosed with a learning problem (LP). These responses were recorded to both a click stimulus and the formant transition portion of a speech syllable /da/. While no latency differences between the NL and LP populations were seen in responses to the click stimuli, the syllable /da/ did elicit latency differences between these two groups. Deficits in cortical processing of signals in noise were seen for those LP subjects with delayed brainstem responses to the /da/, but not for LPs with normal brainstem measures. Preliminary findings indicate that training may be beneficial to LP subjects with brainstem processing delays.

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