NONSYNCHRONOUS BEHAVIOR OF NEURONAL-ACTIVITY, OXIDATIVE-METABOLISM AND BLOOD-SUPPLY DURING MENTAL TASKS IN MAN

被引：129

作者：

HOSHI, Y

ONOE, H

WATANABE, Y

ANDERSSON, J

BERGSTROM, M

LILJA, A

LANGSTROM, B

TAMURA, M

机构：

[1] OSAKA BIOSCI INST,DEPT NEUROSCI,SUITA,OSAKA 565,JAPAN

[2] UNIV UPPSALA,CTR POSITRON EMISS TOMOG,S-75185 UPPSALA,SWEDEN

[3] RES DEV CORP JAPAN,SUBFEMTOMOLE BIORECOGNIT PROJECT,SAPPORO,HOKKAIDO,JAPAN

来源：

NEUROSCIENCE LETTERS | 1994年 / 172卷 / 1-2期

关键词：

NEAR-INFRARED SPECTROSCOPY; POSITRON EMISSION TOMOGRAPHY; MENTAL TASK; COUPLING; NEURONAL ACTIVITY; CEREBRAL BLOOD FLOW; HEMOGLOBIN OXYGENATION STATE;

D O I：

10.1016/0304-3940(94)90679-3

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

In near-infrared spectroscopic studies during mental tasks such as problem solving and mental arithmetic, we found that 9 of 33 healthy volunteers showed decreases in both the regional cerebral blood flow (r-CBF) and oxygen consumption rate (CMRO(2)) in the frontal region of the dominant hemisphere. To confirm these unexpected observations, we performed simultaneous measurements by positron emission tomography (PET) and near-infrared spectroscopy (NIRS) in two such subjects. PET images also showed that CBF decreased within the presumptive area illuminated by near-infrared light during mental task. However, CBF decreased in almost all regions while the subject gave a correct answer. Thus, the questions arose: Are mental tasks always associated with increases in r-CBF and/or CMRO(2)?

引用

页码：129 / 133

页数：5

共 18 条

[1] NONOXIDATIVE GLUCOSE CONSUMPTION DURING FOCAL PHYSIOLOGIC NEURAL ACTIVITY [J].