Language lateralization, handedness and functional connectivity

doi:10.3724/SP.J.1042.2020.00778

Abstract

Abstract:

Language lateralization is one of the most obvious characteristics of brain functional lateralization. Previous neuroimaging studies identified numerous brain regions associated with language lateralization, such as the frontal and temporal lobes, the cingulate and fusiform gyrus, the supplementary motor area, and so on.This review synthesizes current published literature relevant to language lateralization, with an emphasis on handedness and functional connectivity. Our findings show that language lateralization is positively correlated with handedness and intra-hemisphere connectivity but is negatively correlated with inter-hemispheric connectivity. Moreover, the left- and right-handers exhibit different correlation profiles between language lateralization and functional connectivity. We discuss the relationship between language lateralization, handedness, and functional connectivity, and we propose areas for further research.

Key words: language lateralization, handedness, resting state functional connectivity

CLC Number:

B842

WANG Xiao, WU Guorong, WU Xinran, QIU Jiang, CHEN Hong. Language lateralization, handedness and functional connectivity[J]. Advances in Psychological Science, 2020, 28(5): 778-789.

Figures/Tables 1

References 92

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研究文献	LH/N	r	p	实验任务
Kondyli et al. (2017)	30/60	0.095	>0.05	无声词汇产生任务
Kondyli et al. (2017)	30/60	0.643	<0.01	书面词汇产生任务
Haberling & Corballis (2016)	46/92	0.316	<0.01	词汇产生任务
Haberling & Corballis (2016)	46/92	0.267	>0.05	同义词任务
Somers et al. (2015)	154/310	0.285	<0.001	词汇产生任务
Groen et al. (2013)	12/57	0.29	<0.05	语音产生任务
Badzakova-Trajkov et al. (2010)	48/155	0.357	0.001	词汇产生任务
Szaflarski et al. (2002)	20/50	0.28	0.046	语义决定任务

研究文献	LH/N	r	p	实验任务
Kondyli et al. (2017)	30/60	0.095	>0.05	无声词汇产生任务
Kondyli et al. (2017)	30/60	0.643	<0.01	书面词汇产生任务
Haberling & Corballis (2016)	46/92	0.316	<0.01	词汇产生任务
Haberling & Corballis (2016)	46/92	0.267	>0.05	同义词任务
Somers et al. (2015)	154/310	0.285	<0.001	词汇产生任务
Groen et al. (2013)	12/57	0.29	<0.05	语音产生任务
Badzakova-Trajkov et al. (2010)	48/155	0.357	0.001	词汇产生任务
Szaflarski et al. (2002)	20/50	0.28	0.046	语义决定任务

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