Hemispheric lateralization in preattentive processing of speech sounds

被引：113

作者：

Alho, K

Connolly, JF

Cheour, M

Lehtokoski, A

Huotilainen, M

Virtanen, J

Aulanko, R

Ilmoniemi, RJ

机构：

[1] Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland

[2] Univ Helsinki, Dept Phonet, FIN-00014 Helsinki, Finland

[3] Dalhousie Univ, Dept Psychol, Life Sci Ctr, Halifax, NS B3H 4J1, Canada

[4] Univ Helsinki, Cent Hosp, Dept Radiol, FIN-00029 Helsinki, Finland

[5] Univ Helsinki, Cent Hosp, Med Engn Ctr, BioMag Lab, FIN-00029 Helsinki, Finland

来源：

NEUROSCIENCE LETTERS | 1998年 / 258卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 芬兰科学院;

关键词：

magnetoencephalography; mismatch negativity; auditory; speech; attention; hemispheric lateralization;

D O I：

10.1016/S0304-3940(98)00836-2

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Event-related magnetoencephalographic (MEG) responses to infrequently presented spoken deviant syllables [di] and [ba] among repetitive standard [da)]syllables were recorded in subjects who either attended to these stimuli in order to discriminate the [ba] syllables or ignored them while attending a silent movie. In both conditions, the deviant syllables elicited a mismatch response (MMNm, the magnetic counterpart of mismatch negativity), which was stronger in the left than in the right auditory cortex, indicating left-hemispheric dominance in speech processing already at a preattentive processing level. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：9 / 12

页数：4

共 20 条

[1] EVENT-RELATED BRAIN POTENTIALS AND THE PERCEPTION OF A PHONETIC CONTINUUM [J].