Multi-channel near-infrared spectroscopy detects specific inferior-frontal activation during incongruent Stroop trials
Multi-channel near-infrared spectroscopy detects specific inferior-frontal activation during incongruent Stroop trials
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DOI：
10.1016/j.biopsycho.2004.09.003
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发表时间：
2005-07-01
影响因子：
2.6
通讯作者：
Falllgatter, AJ
中科院分区：
文献类型：
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作者：
Ehlis, AC;Herrmann, MJ;Falllgatter, AJ
近红外光谱 (NIRS) 是一种光学方法，可对脑组织中含氧 (O(2)Hb) 和脱氧 (HHb) 血红蛋白浓度的变化进行无创体内测量。在本研究中，我们通过多通道 NIRS（光学地形图；ETG-100，日立医疗公司，日本）对 10 名健康受试者进行了 Stroop 颜色词任务的一致和不一致试验。位于左额上的 NIRS 通道中一致和不一致 Stroop 试验的激活模式相似，O(2)Hb 和血红蛋白总量 (Hb-tot) 的结果表明左半球额下区域干扰试验的特定激活。这一结果与几项神经影像学研究（fMRI、PET）一致，这些研究已经研究了与 Stroop 干扰相关的额叶激活，这进一步支持了这样的假设：多通道 NIRS 足够灵敏，可以在执行认知任务期间检测空间特异性激活。 (c) 2004 Elsevier B.V. 保留所有权利。
Near-infrared spectroscopy (NIRS) is an optical method, which allows non-invasive in vivo measurements of changes in the concentration of oxygenated (O(2)Hb) and deoxygenated (HHb) hemoglobin in brain tissue. In the present study we investigated 10 healthy subjects by means of multi-channel NIRS (Optical Topography; ETG-100, Hitachi Medical Co., Japan) during performance of congruent and incongruent trials of the Stroop color word task. With a similar pattern of activation for both congruent and incongruent Stroop trials in the NIRS channels located left superior-frontally, the results for O(2)Hb and the total amount of hemoglobin (Hb-tot) indicate specific activation for interference trials in inferior-frontal areas of the left hemisphere. This result is in line with several neuroimaging studies (fMRI, PET) that have already investigated the frontal activation related to Stroop interference, which further supports the assumption that multi-channel NIRS is sensitive enough to detect spatially specific activation during the performance of cognitive tasks. (c) 2004 Elsevier B.V. All rights reserved.