Posted by: Indonesian Children | August 4, 2009

Aggregate neural responses to speech sounds in the central auditory system

Speech Communication archive
Volume 41 ,  Issue 1  (August 2003) table of contents
Special issue on the nature of speech perception (the psychophysics of speech perception III) Pages: 35 – 47   Year of Publication: 2003

Nina Kraus  Trent Nicol  


The fundamental complexity of speech–in both the spectral and temporal domains–elicits extensive dynamic activity from a broad neural population. Evoked potentials rely on a summation of synchronous aggregate neural activity, making them especially suitable for speech-sound investigation.This paper summarizes research from our lab that demonstrates the efficacy of speech-evoked responses in addressing three fundamental issues. First, the neural bases of left-brain specialization to speech are investigated in an animal model. Second, studies are aimed at inferring the underlying causes of certain language-based learning disabilities. Finally, in a series of before-and-after designs, the underlying neural plasticity that accompanies directed speech-sound training is explored.


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