Hemispheric processing of duration changes in speech and non-speech sounds

Neuroreport
Rika TakegataR Näätänen

Abstract

Sound duration conveys phonemic information in some languages. The present study, using magnetoencephalography (MEG), examined whether the hemispheric activation associated with the processing of duration is different between speech and non-speech sounds in subjects whose native language uses duration as a phonemic cue. The magnetic mismatch negativity (MMNm) response was recorded for equal-duration decrements in vowel, sinusoidal, and spectrally rich complex sounds. Although the MMNm responses to duration changes were predominant in the right hemisphere, the distribution of this response for the vowel stimuli was significantly displaced leftward compared with that for the other two types of stimuli. The results suggest that the hemispheric distribution of the MMNm response to duration change depends on the linguistic relevance of the change.

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Citations

Mar 17, 2005·Neuroreport·Janis E Oram CardyTimothy P L Roberts
Jul 14, 2011·PloS One·Bastiaan BohChristo Pantev
Apr 17, 2014·Neuroreport·Ellen MarklundFrancisco Lacerda
Nov 26, 2008·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·C ColinP Deltenre
Apr 29, 2008·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Tiina Huttunen-ScottHeikki Lyytinen
May 31, 2008·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Derek J FisherVerner J Knott
Mar 2, 2010·Brain Research·Alexander SorokinTeija Kujala
Aug 16, 2005·Brain Research. Cognitive Brain Research·Tom EicheleKenneth Hugdahl
Apr 8, 2015·The European Journal of Neuroscience·Kai HeimrathTino Zaehle
Dec 3, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Woojin ChoiChun Kee Chung
Mar 11, 2008·Neuropsychologia·Alfredo BrancucciLuca Tommasi
Nov 11, 2005·Cerebral Cortex·Helen L JamisonPaul M Matthews

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