Development of navigation skills in late blind

在这项研究中，提出了促进地下空间导航的信息。在不考虑自然埋藏在地面上的因素的情况下，地下环境中存在着可以用于导航目的的特殊结构。通过在东京一些地下空间进行的实验中对一名视觉障碍对象的参与式观察和口头报告，我们的研究发现，结构光阵列和颜色对比度阵列支持直线行走。此外，还给出了一个展示导航者在地下空间行走时所感知的环境的总和的例子。我们对受试者在多个地下通道中的行走进行了参与式观察。在我们不断研究视障人士的导航过程中，我们注意到这名受试者的行走非常笔直。为了调查促进导航的信息，我们不仅观察并收集了描述性数据，这些数据构成了受试者的口头报告。此外，我们在庭审后对她进行了访谈，通过观察她的行走情况，包括她自己的口头报告，分析了推动她行动的信息。这个实验是在东京的几个地下通道中进行的。这里展示的数据是在池袋站和饭桥站拍摄的。这个主题已经很好地适应了前者，而后者则是一个新奇的地方。

In this study, information which promote navigation in underground spaces is presented. Without taking into account factors which are naturally embedded on the ground, there are peculiar structures that can be used for navigational purposes in an underground environment.Through the participatory observation and oral report of a visually handicapped subject in experiments carried out in some underground spaces of Tokyo, our study revealed that the array of structured light and an array of contrast of colors supported straight walking. In addition, one example of a sumulation that illustrates the environment as perceived by the navigator while walking in an underground space is also presented.We carried out participatory observation of the walking performed by a subject in several underground passages. In the course of our continuous study of the navigation of visually handicapped individuals, we had noticed that the walking of this subject had been remarkably straight. To investigate the informations that promote navigation, we not only observed but also collected descriptive data, that comprises the oral report of the subject. In addition, we interviewed with her after the trials.The information that promoted her motion was analyzed by observation of her walking including its record on videotape and by the oral report by herself. This experiment was located in several underground passages in Tokyo. The data presented here were taken in Ikebukuro station and Iidabashi station. The subject had been well used to the former and the latter was a novel place.