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정서가 동작수행 정보처리과정 중 반응선택에 미치는 영향
김동환(Dong Hwan Kim),전혜자(Hea Ja Jeon) 한국여성체육학회 2013 한국여성체육학회지 Vol.27 No.2
The purpose of this study was to explore the relationship between event related potential (ERP) and response-selection and to investigate the effect of emotion on a response-selection stage of during the information processing for movement execution. A total 43 university students performed choice reaction time for tasks with the 1, 2, and 4 stimulus-response alternatives after viewing positive and negative emotional picture during 70ms and 3000ms respectively. As the number of stimulus-response alternative increased, four groups revealed linear increases in reaction time (RT). As Amplitude 80ms of ERP increased, reaction time decreases. Short negative emotional stimulus group is significantly faster in 170ms latency of ERP than the other groups. These findings suggest that the decreased RT in short negative emotional stimulus group is due to an increased arousal by emotional stimulus in central processing mechanism.
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전혜자,김태삼,한희창 한국장애인재활협회 2010 재활복지 Vol.14 No.2
The purpose of this study was to analyze the low extremity joints movement during walking between normal and intellectual disability adults. The subjects of 30 males were participated in this study. Five video camera were collected to 30frame/s for obtain the kinematic data. Three dimensional motion analysis with 5 cameras which sampling frequency was 60Hz, were performed. Kwon 3D version 3.1 and Matlab version 6.5 program were used to data collection and joint angle calculation, respectively. This study was to analysis one stride phase: Each gait cycle was taken from initial right heel contact to the next right heel contact. All data were analyzed by the ((SD/Mean)×100) variability and independent t-test Measure was used to the statistic significance between and within groups for all parameters determined with SPSS 11.0 significance was defined at p < 0.05. The results were as follows; In motion of the hip joint appeared that flexion/extension(swing deceleration phase), adduction and abduction(support phase), and internal/external rotation(landing phase) were statistically difference in between groups. ROM of the hip joint showed statistically difference in internal/external rotation between groups. In motion of the knee joint appeared that flexion/extension(swing deceleration phase), adduction and abduction(swing acceleration phase), and internal/external rotation(support phase) were statistically difference in between groups. ROM of the knee joint showed statistically difference in varus/valgus between groups. In motion of the ankle joint appeared that inversion/eversion(support phase, swing acceleration phase) were statistically difference in between groups. ROM of the knee joint showed statistically difference in dorsiflexion/plantarflexion and inversion/eversion between groups. Especially, in characters of the variability, the intellectual disability group showed a bigger variability values than the consistence normal adult group. 이 연구는 지적장애인의 보행 시 하지관절의 움직임 변화를 분석하기 위한 것으로, 이를 위해 6mm 비디오카메라 5대를 이용하여 영상분석 프로그램인 Kwon3D 3.1을 이용하여 3차원 위치과표를 얻었다. 3차원 위치좌표는 ASCⅡ 파일로 변환시킨 후, Marlab 6.5 프로그램을 이용하여 Cardan의 3차원 각도 계산방법을 이용하여 분석하였다. 분석된 자료를 이용하여 성인그룹과 지적장애인 그룹 간의 차이를 검증하기 위해 독립 t-test를 분석한 결과 다음과 같은 결론을 얻었다. 엉덩관절과 무릎관절의 굴곡/신전, 내번/외번, 그리고 내측회전/외측회전의 움직임과 ROM에 있어서 그룹 간에 통계적으로 유의한 차이를 보였다. 발목관절의 내번과 외번, ROM의 경우 그룹 간에 통계적인 차이를 보였다. 특히 엉덩관절, 무릎관절, 그리고 발목관절의 움직임에 대한 변이성(Variability)에 있어서 일관된 자세를 보이는 성인그룹보다 지적장애인그룹이 다소 큰 특성을 보였다.
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