EEG correlates of speech: Examination of event related potentials elicited by phoneme classes

Annamaria Kovacs, Istvan Winkler, Klara Vicsi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper reports on a preliminary study carried out to examine whether the phoneme classes defined by linguists elicit distinguishable electroencephalographic (EEG) responses from the brain. To this end event-related potentials (ERP) were recorded in response to three-syllabic nonsense words (non-words) with three consonant-vowel transitions (CVCVCV). The first syllable of the non-words being fixed, ERPs were triggered from the onset of the middle syllable, which was established by manually segmenting the non-words at phoneme level. The ERP responses elicited by the second syllable were examined. Nonparametric t-tests were carried out to compare the different ERP responses of the middle syllable. The results show that different ERPs were produced by consonants belonging to different phonemic categories (fricatives, plosives, liquids, nasals and affricates). ERP amplitudes and their scalp distribution differed from each other across non-similar phonetic categories. Consonants from the same phonemic category elicited similar ERP responses. Further, the scalp distributions of the ERP responses were characteristically different for different phoneme classes of consonants. These results suggest that the manner of articulation is an important component of the phonetic representation of consonants in the brain.

Original languageEnglish
Title of host publication8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538612644
DOIs
Publication statusPublished - Jul 2 2017
Event8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017 - Debrecen, Hungary
Duration: Sep 11 2017Sep 14 2017

Publication series

Name8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017 - Proceedings
Volume2018-January

Other

Other8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017
CountryHungary
CityDebrecen
Period9/11/179/14/17

Keywords

  • EEG
  • auditory event-related potentials (ERP)
  • auditory events
  • auditory feature extraction
  • speech segmentation
  • speech transients

ASJC Scopus subject areas

  • Communication
  • Cognitive Neuroscience
  • Human-Computer Interaction
  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition

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  • Cite this

    Kovacs, A., Winkler, I., & Vicsi, K. (2017). EEG correlates of speech: Examination of event related potentials elicited by phoneme classes. In 8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017 - Proceedings [000115] (8th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2017 - Proceedings; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CogInfoCom.2017.8268226