Focal frontal (de)oxyhemoglobin responses during simple arithmetic

被引：85

作者：

Pfurtscheller, Gert ^{[1
]}

Bauernfeind, Guenther ^{[1
]}

Wriessnegger, Selina Christin ^{[1
]}

Neuper, Christa ^{[1
,2
]}

机构：

[1] Graz Univ Technol, Inst Knowledge Discovery, Lab Brain Comp Interfaces, A-8010 Graz, Austria

[2] Graz Univ, Dept Psychol, A-8010 Graz, Austria

来源：

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY | 2010年 / 76卷 / 03期

关键词：

Hemodynamic response; Prefrontal cortex; Mental arithmetic; (De)oxyhemoglobin change; Near-infrared spectroscopy (MRS); Multi-channel NIRS; NEAR-INFRARED SPECTROSCOPY; RESTING-STATE NETWORKS; PREFRONTAL CORTEX; HEMOGLOBIN OXYGENATION; OXIDATIVE-METABOLISM; PARIETAL CORTEX; BRAIN; ACTIVATION; IMAGERY; SYNCHRONIZATION;

D O I：

10.1016/j.ijpsycho.2010.03.013

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Near-infrared spectroscopy (NIRS) is a functional brain imaging method able to study hemodynamic changes during cortical activation. We studied the changes of oxy- and deoxyhemoglobin ([oxy-Hb],[deoxy-Hb]) with a 52-channel NIRS system during simple mental arithmetic in ten healthy volunteers over the prefrontal cortex. We found that eight of the ten subjects showed a relative focal bilateral increase of [oxy-Hb] in the dorsolateral prefrontal cortex (DLPFC) in parallel with a decrease in the medial area of the anterior prefrontal cortex (APFC). The [oxy-Hb] response in left DLPFC and APFC was significant, while the [deoxy-Hb] response was clearly smaller and not significant. These observations were discussed within the context of "focal activation/surround deactivation". (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：186 / 192

页数：7

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