Investigations and applications of 'verisimilitude' as a new Kansei concept based on inverse effectiveness

存在感已经得到了很好的研究，发现存在感在很大程度上取决于场景中包含的背景信息，而多模态内容中前景成分的欣赏过程尚未得到详细的研究。因此，我们将重点放在真实感作为前景信息质量的指标上。使用日本花园场景和西方管弦乐片段等视听内容，我们发现在中等刺激强度下，真实感往往是最大的。因此，真实感被认为是建立在反有效性原理的基础上的。我们还发现，不同的皮层区域在评估存在感和真实感时被激活。

The sense of presence has been well investigated and found to be significantly based on background information contained in a scene, while the appreciative process of foreground components in multimodal contents have not been investigated in detail. Therefore, we focused on the sense of verisimilitude as an index for foreground information quality.Using audio-visual contents such as a Japanese garden scene and a clip of western orchestral music, we found that the sense of verisimilitude tends to be maximum at moderate levels of stimulus intensities. Hence, the sense of verisimilitude is considered to be based on the principle of inverse effectiveness. We also found that different cortical regions are activated in evaluating the sense of presence and the sense of verisimilitude.