The measurement of the Kansei effects of the density and the fractal structure in visual informational environments on human sensitivity

本研究旨在通过脑生理学，特别是脑功能的无创测量与心理评价的有机结合，揭示人类对一些高密度、分形结构的高度自然视觉信息的信号结构差异的反应。为了衡量视觉媒体信息密度的影响，我们搜索并选择了具有丰富分形结构的拍摄目标，并通过静态图像、High-Vision视频图像和信息密度为High-Vision四倍的4K视频图像开发了高清图像样本进行实验呈现。声音样本被开发出来与那些静止图像和视频图像同步。研究和发展了相应的生理和心理评价方法来评价这些图像和声音对人的影响。我们进行了一些检查，以引入最新的测量技术，如功能磁共振成像和基因表达动力学，以评估图像介质。受试者对这些样本（静止图像、视频图像和与这些视觉图像同步的声音）的反应均通过脑电图和血液中的生物活性物质以及主观印象评估来检查。实验结果表明，在高视力条件下，与NTSC相比，显示基础脑激活的alpha EEG增强，且具有统计学意义；在4K图像条件下，与高视力条件相比，alpha EEG增强具有统计学意义。免疫恢复和血液中神经递质密度的几个指标表明，图像信息密度越大，应激水平越低。此外，我们还进行了Sheffe配对对比法的问卷调查，发现视觉图像的密度越大，图像的美感和舒适度就越高。

The research aimed to reveal the reaction of humans to the differences in signal structures of some highly-natural visual information of high density and fractal structure by organically combining brain physiology, especially, non-invasive measurement of brain function, and psychological evaluation.To measure the influence of the density of the visual media information, we searched for and selected the targets of shooting that have rich fractal structures, and we developed the high-definition image samples for experimental presentation by means of still image, High-Vision video image, and 4K video image that had the information density four times of High-Vision. Sound samples were developed to synchronize with those still and video images. Physiological and the psychological evaluation methods were examined and developed suitably to evaluate the influences that such images and sounds exerted on human beings. We performed some examination to introduce up-to-date measurement techniques, such as fMRI, and the gene expression dynamics, to evaluate image media. The subjects' reactions to those samples (a still image, video images, and sounds that synchronized with those visual images) were examined all by the EEG and the biologically active substances in the blood, and the subjective impression evaluation.The experiment showed that alpha EEG, indicating the activation of the fundamental brain, was enhanced with statistically significance in the condition of High-Vision compared to that of NTSC, and in of 4K image to of High-Vision. Several indexes of the immunity revitalization and the density of the neurotransmitter in blood suggested the stress be decreased by higher density of image information. Additionally, we also underwent questionnaire of the paired comparison method of Sheffe, and found the effects that higher density of visual images improved the beauty and comforts of the images.