The predictive roles of neural oscillations in speech motor adaptability

Ranit Sengupta, Sazzad M. Nasir*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The human speech system exhibits a remarkable flexibility by adapting to alterations in speaking environments. While it is believed that speech motor adaptation under altered sensory feedback involves rapid reorganization of speech motor networks, the mechanisms by which different brain regions communicate and coordinate their activity to mediate adaptation remain unknown, and explanations of outcome differences in adaption remain largely elusive. In this study, under the paradigm of altered auditory feedback with continuous EEG recordings, the differential roles of oscillatory neural processes in motor speech adaptability were investigated. The predictive capacities of different EEG frequency bands were assessed, and it was found that theta-, beta-, and gamma-band activities during speech planning and production contained significant and reliable information about motor speech adaptability. It was further observed that these bands do not work independently but interact with each other suggesting an underlying brain network operating across hierarchically organized frequency bands to support motor speech adaptation. These results provide novel insights into both learning and disorders of speech using time frequency analysis of neural oscillations.

Original languageEnglish (US)
Pages (from-to)2519-2528
Number of pages10
JournalJournal of neurophysiology
Issue number5
StatePublished - May 1 2016


  • EEG
  • Motor speech adaptation
  • Neuronal oscillations

ASJC Scopus subject areas

  • General Neuroscience
  • Physiology


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