Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Emotional and Behavioral characteristics of Early Childhood comparing Alpha wave and Beta wave Asymmetry at Prefrontal Lobe and with BIS/BAS

전전두엽 알파(α)파·베타(β)파 비대칭과 BIS/BAS에 기초한 유아들의 정서·행동 특성

  • 임현순 (서울벤처정보대학원대학교 정보경영학과) ;
  • 채명신 (서울벤처정보대학원대학교 정보경영학과) ;
  • 박병운 (서울불교대학원대학교 뇌과학)
  • Received : 2011.05.12
  • Accepted : 2011.06.09
  • Published : 2011.06.30
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Abstract

The EEG asymmetry of prefrontal lobe has been researched to analyze the affect such as depression or anxiety and the behavioral characteristics such as BIS(Behavioral Inhibition System)/BAS(Behavioral Activational System) on the basiss of alpha band. However there has been several proposals about the importance of beta asymmetry pointing out the limitation of alpha asymmetry. Here, for 44 numbers of 4-year-old children, by comparing alpha asymmetry and beta asymmetry with BIS/BAS results respectively, we propose the way to classify the characteristics of affect and behavioral trend. We also found that BIS is related with beta-asymmetry, while BAS is related with alpha-asymmetry. As for the affective trait, we use the alpha asymmetry following the other results. Our results seem to be consistent with the other results that the synapse formation of young children is more active at the hemisphere than the right hemisphere.

우울증이나 불안과 같은 정서적 특성이나 BIS/BAS 같은 행동성향 특성과 관련하여 전전두엽에서 뇌파 비대칭 연구는 주로 알파(${\alpha}$)파를 중심으로 이루어져 왔다. 하지만 알파(${\alpha}$)파 만으로 이러한 특성을 구분하는 것에 대한 한계점이 제기 되면서 베타(${\beta}$)파와 같은 다른 밴드를 중심으로 한 연구의 필요성이 제기되고 있다. 이에 따라 본 연구는 만4세 유아 44명을 대상으로 전전두엽에서 뇌파를 측정하여 알파(${\alpha}$)파 비대칭성과 베타(${\beta}$)파 비대칭성을 독립적으로 분리하여 BIS/BAS적 경향성과 비교 분석하였고, 이들 세 가지 특성을 조합하여 유아의 정서와 행동 성향을 8가지로 구분하는 방법을 제시하였다. 연구결과 N의 계수해석으로 BIS적 특성은 베타(${\beta}$)파 비대칭으로, BAS적 특성은 알파(${\alpha}$)파 비대칭 특성으로 판별하는 것이 확률적으로 높은 정확성을 보인다는 것을 발견하였다. 정서적 특성은 기존의 연구 결과와 같이 알파(${\alpha}$)파 비대칭으로 판단하였다. 이것은 뇌 발달 과정에서 만 4세 유아의 시냅스 형성이 좌뇌가 우뇌보다 활발하다는 연구 결과와 일치하는 것으로 판단된다.

Keywords

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