Lateralized cognitive processes and lateralized task control in the human brain

被引：237

作者：

Stephan, KE

Marshall, JC

Friston, KJ

Rowe, JB

Ritzl, A

Zilles, K

Fink, GR ^{[1
]}

机构：

[1] Res Ctr Julich, Inst Med, D-52425 Julich, Germany

[2] Univ Aachen, Dept Neurol, D-52074 Aachen, Germany

[3] UCL, Wellcome Dept Imaging Neurosci, London WC1N 3BG, England

[4] UCL, Natl Hosp Neurol & Neurosurg, London WC1N 3BG, England

[5] Univ Oxford, Radcliffe Infirm, Dept Clin Neurol, Neuropsychol Unit, Oxford OX2 6HE, England

[6] Univ Dusseldorf, C&O Vogt Brain Res Inst, D-40225 Dusseldorf, Germany

来源：

SCIENCE | 2003年 / 301卷 / 5631期

基金：

英国惠康基金;

关键词：

D O I：

10.1126/science.1086025

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：

The principles underlying human hemispheric specialization are poorly understood. We used functional magnetic resonance imaging of letter and visuospatial decision tasks with identical word stimuli to address two unresolved problems. First, hemispheric specialization depended on the nature of the task rather than on the nature of the stimulus. Second, analysis of frontal candidate regions for cognitive control showed increased coupling between left anterior cingulate cortex (ACC) and left inferior frontal gyrus during letter decisions, whereas right ACC showed enhanced coupling with right parietal areas during visuospatial decisions. Cognitive control is thus localized in the same hemisphere as task execution.

引用

页码：384 / 386

页数：3

共 27 条

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[Anonymous], ASYMMETRICAL BRAIN

[2]

[Anonymous], 1988, NEUROPSYCHOLOGY MENT

[3] THE NATURE OF HEMISPHERIC-SPECIALIZATION IN MAN [J].