CAJ | 학술논문

目的研究基于视觉、听觉以及视听融合感知的刺激源对脑电(EEG)识别率的影响。方法试验分别从视觉、听觉和视听融合3种情况提供与交通环境相关的刺激源，在不同刺激源的提示下，受试者利用左右手想象运动对车辆进行启动和制动控制，并对采集的脑电数据进行特征提取和分类处理，得到与想象运动相关的C3、C4导联上的特征信号和分类结果。结果视觉、听觉、视听融合环境下5名受试者最高识别率分别为100％、100％、83.3％，平均识别率分别为68.8％、82.2％、76.9％。结论基于视听感官的刺激源对脑电的识别率有一定影响，并且存在较大的个体差异。
목적 연구기우시각、은각이급시은융합감지적자격원대뇌전(EEG)식별솔적영향。방법시험분별종시각、은각화시은융합3충정황제공여교통배경상관적자격원，재불동자격원적제시하，수시자이용좌우수상상운동대차량진행계동화제동공제，병대채집적뇌전수거진행특정제취화분류처리，득도여상상운동상관적C3、C4도련상적특정신호화분류결과。결과시각、은각、시은융합배경하5명수시자최고식별솔분별위100％、100％、83.3％，평균식별솔분별위68.8％、82.2％、76.9％。결론기우시은감관적자격원대뇌전적식별솔유일정영향，병차존재교대적개체차이。
Objective To evaluate the effect of electroencephalography(EEG) recognition rate resulted by stimulus of visual, auditory and combined perception. Methods In virtual traffic environment, the stimuli were designed in traffic information based on visual, auditory and audio-visual fusion. When one of the three stimuli appeared, the subjects completed starting and braking vehicle by imaginary using of right and left hands at the same time. The EEG signals were recorded and the imaginary motion-related features from C3, C4 were extracted and classified. Results The best recognition rates in visual, auditory and fusion perception were 100％, 100％and 83％, respectively, while the averages of the rates were 68.8％、82.2％、76.9％, respectively. Conclusion The recognition rates are affected by the audio, visual and fusion stimulus and apparent individual differences exist.