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The Research on Prediction of Attentive Hand Movement using EEG Coherence

EEG 코히런스에 의한 집중한 손 동작 예측에 관한 연구

  • Woo, Jin-Cheol (Culture Technology Institute, Sangmyung University) ;
  • Whang, Min-Cheol (Department of Digital Media Engineering, Sangmyung University) ;
  • Kim, Jong-Wha (Department of Emotion Engineering, Sangmyung University The Graduate School) ;
  • Kim, Chi-Joong (Department of Computer Science, Sangmyung University The Graduate School) ;
  • Kim, Yong-Woo (Department of Computer Science, Sangmyung University The Graduate School) ;
  • Kim, Ji-Hye (Department of Computer Science, Sangmyung University The Graduate School) ;
  • Kim, Dong-Keun (Department of Digital Media Engineering, Sangmyung University)
  • 우진철 (상명대학교 문화컨텐츠 기술 연구소) ;
  • 황민철 (상명대학교 디지털미디어학과) ;
  • 김종화 (상명대학교 일반대학원 감성공학과) ;
  • 김치중 (상명대학교 일반대학원 컴퓨터과학과) ;
  • 김용우 (상명대학교 일반대학원 컴퓨터과학과) ;
  • 김지혜 (상명대학교 일반대학원 컴퓨터과학과) ;
  • 김동근 (상명대학교 디지털미디어학과)
  • Published : 2010.04.30

Abstract

The study is to find relative EEG power spectrum and pattern of coherence discriminating attentive and inattentive hand movements. Eight undergraduate students aged from 20 to 27 who had not hand disability participated in this study. Participants were asked to perform visuo-motor task. EEG was measured at C3 in 10~20 international system and four areas orthogonally directed 2.5cm away from C3. Significant result discriminating movement and rest was found through coherence analysis between movement areas or movement area and non-movement area, but was individually different. Because it was anticipated that major factors caused by the differences among individuals were attributed to the attention of the subjects, relative power of alpha and beta bands was identified. As a result, significant relative powers of alpha and beta bands were found in a group of high coherence level, but were not found in a group of low level. Next, participants were divided into two groups according to relative powers of alpha and beta bands. The comparison between two groups was performed. As a result, the coherence of the alpha band in the attentive group was greater than that of the inattentive group. It was found that the coherence of the beta band in the inattentive group was happening. Therefore, individual differences of coherence were influenced by attention. The significant coherence patterns that could discriminate attentive movement and inattentive movement were found.

Keywords

References

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