In daily living, people are challenged to focus on their goal while eliminating interferences. Specifically, this study investigated the pre-frontal cortex (PFC) activity while attention control was tested using the self-made color-word interference test (CWIT) with a functional near-infrared spectroscopy device (fNIRS). Among 11 healthy Korean university students, overall the highest scores were obtained in the congruent Korean condition 1 (CKC-1) and had the least vascular response (VR) as opposed to the incongruent Korean condition 2 (IKC-2). The individual’s automatic reading response caused less brain activation while IKC-2 involves color suppression. Across the three trials per each condition, no significant differences (SD) in scores and in VR since there was no intervention did. Meanwhile, SD was observed between CKC-1 and English Congruent Condition 3 (ECC-3) across trials. However, SD was only observed on the third trial of VR. In the connectivity analysis, right and left PFC are activated on ECC-3. In CKC-1 and IKC-2, encompassing dorsomedial and dorsolateral although CKC-1 has less connection and connectivity due to less brain activation as compared. Therefore, aside from VR, brain connectivity could be identified non-invasively using fNIRS without ionizing radiation and at low-cost.

中文翻译：

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在韩语和英语颜色词干扰测试期间，通过使用功能性近红外光谱技术，研究前额叶皮层的血流动力学活性和连通性。

在日常生活中，人们面临着挑战，即在消除干扰的同时专注于自己的目标。具体而言，本研究调查了前额叶皮层（PFC）的活动，同时使用带有功能性近红外光谱仪（fNIRS）的自制色词干扰测试（CWIT）对注意力控制进行了测试。在11名健康的韩国大学生中，总体上得分最高的是韩国人全情1（CKC-1），而血管反应（VR）最少，而韩国人不全情2（IKC-2）。个人的自动阅读反应导致较少的大脑激活，而IKC-2涉及颜色抑制。在每种情况下的三项试验中，由于没有干预，因此评分和VR均无显着差异（SD）。与此同时，在整个试验中，在CKC-1和英语同等条件3（ECC-3）之间观察到SD。但是，仅在VR的第三次试验中观察到SD。在连通性分析中，在ECC-3上激活左右PFC。在CKC-1和IKC-2中，尽管由于与之相比大脑活动较少，所以CKC-1的连接性和连通性较弱，但包括背侧和背外侧。因此，除了VR之外，还可以使用fNIRS以非侵入性的方式识别出大脑的连通性，而无需电离辐射并且价格低廉。