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

1 Citation (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

Keywords

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

ASJC Scopus subject areas

  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Hemodynamic activity and connectivity of the prefrontal cortex by using functional near-infrared spectroscopy during color-word interference test in Korean and English language'. Together they form a unique fingerprint.

Cite this