The role of neuronal signaling in controlling cerebral blood flow

被引：122
|
作者：
Drake, Carrie T. [1 ]
Iadecola, Costantino [1 ]
机构：
[1] Cornell Univ, Weill Med Coll, Div Neurobiol, Dept Neurol & Neurosci, New York, NY 10128 USA
来源：
BRAIN AND LANGUAGE | 2007年 / 102卷 / 02期
关键词：
functional hyperemia; cerebral blood flow; neurovascular unit; BOLD;
D O I：
10.1016/j.bandl.2006.08.002
中图分类号：
R36 [病理学]; R76 [耳鼻咽喉科学];
学科分类号：
100104 ; 100213 ;
摘要：
Well-regulated blood flow within the brain is vital to normal function. The brain's requirement for sufficient blood flow is ensured by a tight link between neural activity and blood flow. The link between regional synaptic activity and regional cerebral blood flow, termed functional hyperemia, is the basis for several modern imaging techniques that have revolutionized the study of human brain activity. Here, we review the mechanisms of functional hyperemia and their implications for interpreting the blood oxygen level-dependent (BOLD) contrast signal used in functional magnetic resonance imaging (fMRI). (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：141 / 152
页数：12
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