Apr 5, 2020

Neural dynamics of phoneme sequencing in real speech jointly encode order and invariant content

BioRxiv : the Preprint Server for Biology
Laura GwilliamsD. Poeppel


Listeners experience speech as a sequence of discrete words. However, the real input is a continuously varying acoustic signal that blends words and phonemes into one another. Here we recorded two-hour magnetoencephalograms from 21 subjects listening to stories, in order to investigate how the brain concurrently solves three competing demands: 1) processing overlapping acoustic-phonetic information while 2) keeping track of the relative order of phonemic units and 3) maintaining individuated phonetic information until successful word recognition. We show that the human brain transforms speech input, roughly at the rate of phoneme duration, along a temporally-defined representational trajectory. These representations, absent from the acoustic signal, are active earlier when phonemes are predictable than when they are surprising, and are sustained until lexical ambiguity is resolved. The results reveal how phoneme sequences in natural speech are represented and how they interface with stored lexical items.

  • References
  • Citations


  • We're still populating references for this paper, please check back later.
  • References
  • Citations


  • This paper may not have been cited yet.

Mentioned in this Paper

Atlantic cod allergenic extract
Bnk protein, Drosophila
Diploid Cell
Genetic Loci
Escherichia coli k12 lambda
Factor XI
Polyploid Cell
Population Group

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.

Related Papers

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
Bahar KhalighinejadNima Mesgarani
The Journal of the Acoustical Society of America
D R Reddy
Psychonomic Bulletin & Review
Nina KazaninaWilliam Idsardi
© 2020 Meta ULC. All rights reserved