Functional brain laterality for sequential movements: Impact of transient practice

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	Functional brain laterality for sequential movements: Impact of transient practice
	Zhu, YH ; Dong, ZW ; Weng, XC; Chen, YZ ; WENG Xuchu
摘要	The impact of learning on brain functional laterality has not been systematically investigated. We employed an event-related functional magnetic resonance imaging combined with a delayed sequential movement task to investigate brain activation pattern and laterality during a transient practice in 12 subjects. Both hemispheres, involving motor areas and posterior parietal cortex, were engaged during motor preparation and execution, with larger activation volume in the left hemisphere than in the right. Activation volume in these regions significantly decreased after a transient practice, with more reduction in the right hemisphere resulting increase in left lateralization. The theoretical implications of these findings are discussed in relation to the physiological significance of brain functional laterality.; The impact of learning on brain functional laterality has not been systematically investigated. We employed an event-related functional magnetic resonance imaging combined with a delayed sequential movement task to investigate brain activation pattern and laterality during a transient practice in 12 subjects. Both hemispheres, involving motor areas and posterior parietal cortex, were engaged during motor preparation and execution, with larger activation volume in the left hemisphere than in the right. Activation volume in these regions significantly decreased after a transient practice, with more reduction in the right hemisphere resulting increase in left lateralization. The theoretical implications of these findings are discussed in relation to the physiological significance of brain functional laterality.
关键词	brain laterality learning sequential movement functional magnetic resonance imaging (fMRI)
学科领域	生理心理学/生物心理学
	2005-02-01
语种	英语
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	50 期号:3 页码:235-239
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000228412100008
引用统计
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/5425
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	WENG Xuchu
作者单位	1.Zhejiang Univ, Sch Med, Hangzhou 310006, Peoples R China 2.Hebei Normal Univ, Dept Psychol, Sch Educ, Shijiazhuang 050091, Peoples R China 3.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China 4.Second Mil Med Univ, Inst Neurosci, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Zhu, YH,Dong, ZW,Weng, XC,et al. Functional brain laterality for sequential movements: Impact of transient practice[J]. CHINESE SCIENCE BULLETIN,2005,50(3):235-239.
APA	Zhu, YH,Dong, ZW,Weng, XC,Chen, YZ,&WENG Xuchu.(2005).Functional brain laterality for sequential movements: Impact of transient practice.CHINESE SCIENCE BULLETIN,50(3),235-239.
MLA	Zhu, YH,et al."Functional brain laterality for sequential movements: Impact of transient practice".CHINESE SCIENCE BULLETIN 50.3(2005):235-239.

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