Brain imaging correlates of temporal quantization in spoken language

Research output: Contribution to conferencePaperpeer-review

Abstract

Psychophysical research has established that temporalintegration windows of several different sizes are critical for the analysis of any acoustic speech signal. Recent work from our laboratory has examined speech processing in the human auditory cortex using both hemodynamic (fMRI, PET) and electromagnetic (MEG, EEG) recording techniques. These studies provide evidence for at least two distinct temporal scales relevant to the integration and processing of speech at the cortical level - a relatively short window of 25-50 ms and a longer window of 150- 300 ms. In addition to support for processing on these time scales, there is also evidence for hemispheric asymmetry in temporal quantization. Left auditory cortex shows enhanced sensitivity to rapid temporal changes (possibly associated with segmental and subsegmental perceptual analysis), while right auditory cortex is more sensitive to slower changes (possibly associated with syllabic rate processing and dynamics of pitch).

Original languageEnglish (US)
Pages2561-2564
Number of pages4
StatePublished - 2003
Event8th European Conference on Speech Communication and Technology, EUROSPEECH 2003 - Geneva, Switzerland
Duration: Sep 1 2003Sep 4 2003

Other

Other8th European Conference on Speech Communication and Technology, EUROSPEECH 2003
CountrySwitzerland
CityGeneva
Period9/1/039/4/03

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Linguistics and Language
  • Communication

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