FUNCTIONAL MAGNETIC-RESONANCE-IMAGING OF MOTOR CORTEX - HEMISPHERIC-ASYMMETRY AND HANDEDNESS

被引：825

作者：

KIM, SG

ASHE, J

HENDRICH, K

ELLERMANN, JM

MERKLE, H

UGURBIL, K

GEORGOPOULOS, AP

机构：

[1] UNIV MINNESOTA, SCH MED, DEPT RADIOL, MINNEAPOLIS, MN 55455 USA

[2] DEPT VET AFFAIRS MED CTR, CTR BRAIN SCI, MINNEAPOLIS, MN 55417 USA

[3] UNIV MINNESOTA, SCH MED, DEPT NEUROL, MINNEAPOLIS, MN 55455 USA

[4] UNIV MINNESOTA, SCH MED, DEPT BIOCHEM, MINNEAPOLIS, MN 55455 USA

[5] UNIV MINNESOTA, SCH MED, DEPT MED, MINNEAPOLIS, MN 55455 USA

[6] UNIV MINNESOTA, SCH MED, DEPT PHYSIOL, MINNEAPOLIS, MN 55455 USA

来源：

SCIENCE | 1993年 / 261卷 / 5121期

关键词：

D O I：

10.1126/science.8342027

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A hemispheric asymmetry in the functional activation of the human motor cortex during contralateral (C) and ipsilateral (I) finger movements, especially in right-handed subjects, was documented with nuclear magnetic resonance imaging at high field strength (4 tesla). Whereas the right motor cortex was activated mostly during contralateral finger movements in both right-handed (C/I mean area of activation = 36.8) and left-handed (C/I = 29.9) subjects, the left motor cortex was activated substantially during ipsilateral movements in left-handed subjects (C/I = 5.4) and even more so in right-handed subjects (C/I = 1.3).

引用

页码：615 / 617

页数：3

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