Hemispheric asymmetry of arterial blood flow velocity changes during verbal and visuospatial tasks

被引：38

作者：

BullaHellwig, M ^{[1
]}

Vollmer, J ^{[1
]}

Gotzen, A ^{[1
]}

Skreczek, W ^{[1
]}

Hartje, W ^{[1
]}

机构：

[1] UNIV MUNSTER,DEPT NEUROL,D-4400 MUNSTER,GERMANY

来源：

NEUROPSYCHOLOGIA | 1996年 / 34卷 / 10期

关键词：

transcranial Doppler sonography; cerebral blood flow; cognitive activation; neuropsychology;

D O I：

10.1016/0028-3932(96)00021-8

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Changes in arterial blood flow velocity induced by cognitive activity were measured by simultaneous bilateral transcranial Doppler sonography (TCD) of the posterior and the middle cerebral artery. The finding of a robust left hemisphere dominance for verbal tasks but of an inconsistent right hemisphere dominance for visuospatial tasks obtained in an earlier study [13], in which TCD measurement had been restricted to the middle cerebral arteries, was confirmed. At the same time, it could be demonstrated that the failure to find the expected right hemisphere dominance for tasks of spatial visualization and mental rotation extended to the TCD measurement of the posterior cerebral arteries. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：987 / 991

页数：5

共 22 条

[1] VISUAL-FIELD DIFFERENCES FOR CLOCKWISE AND COUNTERCLOCKWISE MENTAL ROTATION [J].