Word tones cueing morphosyntactic structure: Neuroanatomical substrates and activation time-course assessed by EEG and fMRI.

Research output: Contribution to journalArticle

Abstract

Previous studies distinguish between right hemisphere-dominant processing of prosodic/tonal information and left-hemispheric modulation of grammatical information as well as lexical tones. Swedish word accents offer a prime testing ground to better understand this division. Although similar to lexical tones, word accents are determined by words' morphosyntactic structure, which enables listeners to use the tone at the beginning of a word to predict its grammatical ending. We recorded electrophysiological and hemodynamic brain responses to words where stem tones matched or mismatched inflectional suffixes. Tones produced brain potential effects after 136ms, correlating with subject variability in average BOLD in left primary auditory cortex, superior temporal gyrus, and inferior frontal gyrus. Invalidly cued suffixes activated the left inferior parietal lobe, arguably reflecting increased processing cost of their meaning. Thus, interaction of word accent tones with grammatical morphology yielded a rapid neural response correlating in subject variability with activations in predominantly left-hemispheric brain areas.

Details

Authors
Organisations
External organisations
  • Aarhus University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Neurosciences
  • General Language Studies and Linguistics

Keywords

  • word accent, lexical tone, morphology, grammar, ERP, fMRI, superior temporal gyrus, inferior frontal gyrus
Original languageEnglish
Pages (from-to)14-21
JournalBrain and Language
Volume150
Publication statusPublished - 2015
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Radiation Physics, Lund (013034000), Diagnostic Radiology, (Lund) (013038000), Department of Psychology (012010000), Linguistics and Phonetics (015010003)

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