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Institute for Intelligent Systems

Home Institute for Intelligent Systems Projects Neuroimaging Speech Perception

Neuroimaging Speech Perception

PI: Gavin M. Bidelman

The major goals of the project are to better understand neural basis of complex auditory perception and how it is changed with experience and training. Event-related brain potentials (ERPs) are used to record the electrical activity of the human nervous system and relate brain responses to perceptual and cognitive abilities. We are currently investigating how an individual's perceptual and cognitive abilities for speech and music manifest from their underlying brain activity. We are also examining how listening expertise and/or training (e.g., music lessons, bilingualism) influence an individual's auditory skills and how these benefits might transfer to improve seemingly unrelated cognitive abilities including memory and attention.

Selected Publications:

  • Bidelman, G. M. (2016). Relative contribution of envelope and fine structure to the subcortical encoding of noise-degraded speech. Journal of the Acoustical Society of America, 140(4), EL358-363.
  • Chung, W.-L. & Bidelman, G. M. (2016). Cortical encoding and neurophysiological tracking of English stress patterns in native and nonnative speakers. Brain and Language, 155-156, 49-57.
  • Bidelman, G. M. & Howell, M. (2016). Functional changes in inter- and intra-hemispheric auditory cortical processing underlying degraded speech perception. NeuroImage, 124, 581-590.
  • Bidelman, G. M. & Lee, C.-C. (2015). Effects of language experience and stimulus context on the neural organization and categorical perception of speech. NeuroImage, 120,191-200.
  • Bidelman, G. M., & Dexter, L. (2015). Bilinguals at the "cocktail party": Dissociable neural activity in auditory-linguistic brain regions reveals neurobiological basis for nonnative listeners' speech-in-noise recognition deficits. Brain and Language, 143, 32-41.
  • Bidelman, G. M., Villafuerte, J. W., & Moreno, S., & Alain, C. (2014). Age-related changes in the subcortical-cortical encoding and categorical perception of speech. Neurobiology of Aging, 35(11), 2526-2540.
  • Bidelman, G.M., Moreno, S., Alain, C. 2013. Tracing the emergence of categorical speech perception in the human auditory system. NeuroImage 79, 201-212.
  • Bidelman, G. M., Krishnan, A., & Gandour, J. T. (2011). Enhanced brainstem encoding predicts musicians' perceptual advantages with pitch. European Journal of Neuroscience, 33(3), 530-538.
  • Bidelman, G. M., & Krishnan, A. (2010). Effects of reverberation on brainstem representation of speech in musicians and non-musicians. Brain Research, 1355, 112-125.
  • Bidelman, G.M., Krishnan, A. (2009). Neural correlates of consonance, dissonance, and the hierarchy of musical pitch in the human brainstem. Journal of Neuroscience, 29, 13165-71.