기능적 근적외선 분광법(fNIRS)을 이용한 우세손에 따른 뇌 활성화도에 대한 융합 연구
Convergence Study of Brain Activity by Dominant Hand Using functional near-infrared spectroscopy(fNIRS)
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초록
본 연구에서는 10명의 건강한 성인을 대상으로 기능적 근적외선 분광법(fNIRS)을 이용하여 우세손과 비우세손에 따른 뇌 활성화도의 차이를 알아보고자 하였다. 우세손, 비우세손 총 2가지 조건에서 상자와 나무토막검사(BBT)를 실시하였다. 실험을 진행하는 동안 fNIRS을 이용하여 뇌 활성도를 측정하였으며, 실험이 종료된 후 nirsLAB v2019.04 소프트웨어를 사용하여 신호를 분석하였다. 그 결과 우세손을 사용한 경우 10명 중 6명이 우세손과 관련 있는 대뇌반구의 활성화를 보였고, 비우세손을 사용한 경우는 10명 중 3명만이 비우세손과 관련 있는 대뇌반구의 활성화를 보였다. 즉, 우세손, 비우세손 모두 우세손과 관련 있는 대뇌반구가 좀 더 활성화되었음을 확인하였다. 따라서 우세손을 알기 어려운 감각처리장애를 가진 아동들에게 fNIRS을 적용할 수 있는 기초적 자료로 사용될 수 있으리라 사료된다.
Abstract
In this study, we intended to examine the difference in brain activation due to dominant and non-dominant hands using functional near-infrared spectroscopy(fNIRS) in 10 healthy adults. Box & Block Test(BBT) was conducted under two conditions: dominant hand and non-dominant hand. During the experiment, brain activity was measured using fNIRS and signals were analyzed using nirsLAB v2019.04 software after the experiment was completed. As a result, 6 out of 10 people showed activation of the cerebral hemisphere related to the dominant hand, and only 3 out of 10 people showed activation of the cerebral hemisphere related to the non-dominant hand. In other words, both dominant and non-dominant hand cconfirmed that the cerebral hemispheres related to dominant hands were more active. Therefore, it is believed that fNIRS can be used as a fundamental data applicable to children with sensory processing disorders that are difficult to identify dominant hand.
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