Correlation between eye pupil size and brain wave during learning.

生物数据对于定性评价教育演示和学习者的学习动机是非常重要的。本研究同时对眼睛的瞳孔大小和脑电波进行了测量和分析。设计了一个特殊的电磁屏蔽室，用光学透明屏蔽玻璃窗来降低电视在视觉呈现过程中的电噪声。当不同类型的视觉模式呈现给实验对象时，脑电波的9-11 Hz频段的功率与眼睛的瞳孔大小密切相关。由于眼睛的瞳孔大小受亮度和兴趣、动机等心理影响的影响，因此为了只测量学习者的动机，提出了消除亮度效应的方法。为此，采用神经网络模型考虑了眼球大小的非线性变化，发现脑电波和眼球大小对测量学习者的视觉呈现动机是非常有效的。

Biological data are important for the qualitative evaluation of educational presentation and the learner's motivation. In this study, measurement of eye pupil size and brain wave were simultaneously employed and analyzed.A special electromagnetic shielding room was designed with a window of optically transparent shielding glass to attenuate the electrical noise of television during the visual presentation.Band power from 9Hz to 11Hz of the brain wave and eye pupil size showed a close correlation when different types of visual patterns were presented to a experiment subject.Since eye pupil size changes by brightness and psychological effect such as interest or motivation, the method of removing the brightness effect was developed in order to measure only learner's motivation. For this purpose, neural network model was employed for including the non liner change of eye pupil size.Finally it was found that brain wave and eye pupil size were very effective to measure the learner's motivation for visual presentation.