Hemodynamic activity and connectivity of the prefrontal cortex by using functional near-infrared spectroscopy during color-word interference test in Korean and English language

Gihyoun Lee, Ji Su Park, Mezie Laurence B. Ortiz, Jun Yong Hong, Seung Ho Paik, Seung Hyun Lee, Beop Min Kim, Young Jin Jung

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Article number484
    Pages (from-to)1-16
    Number of pages16
    JournalBrain Sciences
    Volume10
    Issue number8
    DOIs
    Publication statusPublished - 2020 Aug

    Bibliographical note

    Funding Information:
    Funding: This work was funded by Original Technology Research Program for Brain Science through the NRF (National Research Foundation of Korea) funded by Ministry of Science ICT and Future Planning (2015M3C7A1029034), This work was supported by the BB21+ project in 2019, this research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(NRF-2019R1I1A1A01060660), and this research was supported by a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HI14C3477).

    Publisher Copyright:
    © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

    Keywords

    • Brain network
    • Color-word interference
    • Functional near-infrared spectroscopy
    • Hemodynamic connectivity
    • Hemodynamic response

    ASJC Scopus subject areas

    • General Neuroscience

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