The Structural Connectivity Underpinning Language Aptitude, Working Memory, and IQ in the Perisylvian Language Network

Language Learning - Tập 62 Số s2 - Trang 110-130 - 2012
Huadong Xiang1, Dan Dediu2, Leah Roberts3, Erik van Oort1, David G. Norris4, Peter Hagoort2
1Donders Institute for Brain, Cognition and Behaviour
2Donders Institute for Brain, Cognition and Behaviour and Max Planck Institute for Psycholinguistics
3University of York and Max Planck Institute for Psycholinguistics
4Donders Institute for Brain, Cognition and Behaviour, Erwin L. Hahn Institute for Magnetic Resonance Imaging, and MIRA Institute for Biomedical Technology and Technical Medicine

Tóm tắt

In this article, we report the results of a study on the relationship between individual differences in language learning aptitude and the structural connectivity of language pathways in the adult brain, the first of its kind. We measured four components of language aptitude (vocabulary learning; sound recognition; sound‐symbol correspondence; and grammatical inferencing) using the LLAMA language aptitude test. Spatial working memory, verbal working memory and IQ were also measured as control factors. Diffusion Tensor Imaging was employed to investigate the structural connectivity of language pathways in the perisylvian language network. Regression analysis suggested significant correlations between most of these behavioural measures and the structural connectivity of certain language pathways, that is, grammatical inferencing and the BA45‐ and BA46‐Temporal pathway, sound‐symbol correspondence and the interhemispheric BA45 pathway, vocabulary learning and the BA47‐Parietal pathway, IQ and the BA44‐ and BA‐47Parietal pathways, the BA47‐Temporal pathway and interhemispheric BA45 pathway, spatial working memory and the interhemispheric BA6 pathway and the BA47‐Parietal pathway, and verbal working memory and the BA47‐Temporal pathway. These findings provide further insights into the neural underpinnings of the variation in language aptitude of human adults and are discussed in relation to relevant findings in the literature.

Từ khóa


Tài liệu tham khảo

10.1002/mrm.1105

10.1006/jmrb.1996.0086

10.1002/mrm.10609

10.1016/j.neuroimage.2006.09.018

10.1093/brain/awp206

10.1146/annurev.neuro.25.112701.142946

10.1002/hbm.20131

10.1016/j.cortex.2008.05.004

10.1073/pnas.0702116104

10.1002/hbm.10130

10.1016/S0926-6410(98)00004-4

10.1038/nrn2793

10.1016/j.neuroimage.2008.04.249

10.1016/j.tics.2009.01.001

10.1016/j.tics.2005.07.004

10.1177/0013164406288169

10.1016/j.neuroimage.2007.07.053

10.1017/S0140525X07001185

10.1002/jmri.1076

10.1002/hbm.20779

10.1177/0023830910388000

10.1007/s00429-008-0199-8

10.1093/cercor/bhh186

10.1038/431757a

Meara P., 2005, Llama Language Aptitude Tests. The manual

10.1038/nn1077

10.1006/nimg.1999.0441

10.1523/JNEUROSCI.4442-06.2007

10.1007/s00429-009-0211-y

10.1109/TVCG.2008.128

10.1002/bies.20641

10.1073/pnas.95.20.12061

10.1523/JNEUROSCI.4184-08.2009

10.1016/j.neuroimage.2008.03.057

10.1006/nimg.2001.0978

10.1027/1015-5759.24.1.35

Wechsler D., 1997, Wechsler memory scale–Third edition

10.1080/87565641.2010.508551

10.1093/cercor/bhp119

Xiang H. D., L2‐proficiency‐dependent laterality of structural connectivity on brain language pathways, Brain and Language

Yu A. C. L., 2010, Perceptual compensation is correlated with individuals’“autistic” traits: Implications for models of sound change, PLoS One, 5

10.1016/j.ajhg.2009.10.004

Thông tin
Thông tin xuất bản

Language Learning

Tập 62 Số s2

110-130

Thông tin tác giả