Park Sangin, Won Myoung Ju, Lee Eui Chul, Mun Sungchul, Park Min-Chul, Whang Mincheol
Dept. of Emotion Engineering, Graduate School, Sangmyung University, 7 Hongji-dong, Jongro-Ku, Seoul 110-743, Republic of Korea.
Dept. of Computer Science, Sangmyung University, 7 Hongji-dong, Jongro-Ku, Seoul 110-743, Republic of Korea.
Int J Psychophysiol. 2015 Aug;97(2):120-30. doi: 10.1016/j.ijpsycho.2015.04.006. Epub 2015 Apr 21.
The purpose of this study was to identify an evaluation method for 3D cognitive fatigue based on a heart-brain synchronization phenomenon known as the heartbeat evoked potential (HEP). Thirty undergraduate students (15 females) watched a video in both 2D and 3D for an hour. Because visual fatigue is related to cognitive load, the HEP was used as an indicator of communication between the heart and the brain and therefore of cognitive function; responses were compared after 2D and 3D viewing. At the standard EEG sites F3 and F4, the alpha activity of the first and second HEP components was significantly increased after 3D video viewing relative to 2D. This increase likely indicates that sensory input from 3D video requires heavy computation by the brain, stimulating heart activity. The conclusion is that the first and second HEP components are significant parameters that can quantitatively evaluate 3D visual fatigue. Further work is needed to uncover the cause of 3D visual fatigue.
本研究的目的是基于一种被称为心跳诱发电位（HEP）的心脑同步现象，确定一种针对三维认知疲劳的评估方法。30名本科生（15名女性）观看了二维和三维视频各一小时。由于视觉疲劳与认知负荷相关，HEP被用作心脏与大脑之间交流的指标，进而作为认知功能的指标；在观看二维和三维视频后对反应进行了比较。在标准脑电图记录点F3和F4处，与二维视频观看相比，观看三维视频后第一和第二个HEP成分的阿尔法活动显著增加。这种增加可能表明来自三维视频的感官输入需要大脑进行大量计算，从而刺激心脏活动。结论是，第一和第二个HEP成分是能够定量评估三维视觉疲劳的重要参数。还需要进一步研究以揭示三维视觉疲劳的成因。
