The scalp-recorded brainstem response to speech: Neural origins and plasticity

Bharath Chandrasekaran, Nina Kraus*

*Corresponding author for this work

Research output: Contribution to journalArticle

252 Scopus citations

Abstract

Considerable progress has been made in our understanding of the remarkable fidelity with which the human auditory brainstem represents key acoustic features of the speech signal. The brainstem response to speech can be assessed noninvasively by examining scalp-recorded evoked potentials. Morphologically, two main components of the scalp-recorded brainstem response can be differentiated, a transient onset response and a sustained frequency-following response (FFR). Together, these two components are capable of conveying important segmental and suprasegmental information inherent in the typical speech syllable. Here we examine the putative neural sources of the scalp-recorded brainstem response and review recent evidence that demonstrates that the brainstem response to speech is dynamic in nature and malleable by experience. Finally, we propose a putative mechanism for experience-dependent plasticity at the level of the brainstem.

Original languageEnglish (US)
Pages (from-to)236-246
Number of pages11
JournalPsychophysiology
Volume47
Issue number2
DOIs
StatePublished - Mar 2010

Keywords

  • EEG/ERP
  • Language/speech
  • Sensation/perception

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Neurology
  • Endocrine and Autonomic Systems
  • Developmental Neuroscience
  • Cognitive Neuroscience
  • Biological Psychiatry

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