Development of the visual simulation and evaluation system directry connected with perceptual behavior

为了实现与人体运动同步的视觉感知模拟，我们开发了一个软件，并将其添加到我们过去开发的模拟器系统中。该软件控制模拟器的电机与来自三维数字化仪的数据，感测人体运动。并将模拟图像投影到头戴式显示器上。通过该系统，受试者可以像观察真实的空间一样自由地观察比例模型的空间，并开发了与上述模拟器系统同步拍摄背景图片的装置。动画合成系统将此背景图片添加到比例模型图片上，并利用脑电分析仪和分析软件与模拟器系统配合，在观察中获取和分析大脑的信息，利用该模拟器系统进行实验，检验空间认知的准确性。在比例模型空间中，受试者可以识别几乎等于真实的空间的直角和直线。在模拟通道中行走时，受试者也能识别出与真实的空间几乎相等的通道中的直角。当受试者在缩尺模型空间内从小空间到大空间或从大空间到小空间进行静止观察时，在某些电极对上，两电极间的电位相关系数在每个序列中发生了特殊的偏移。但在有运动的观测中，相关系数的变化趋势与上述趋势不同。

For the simulation synchronized with human motion for visual perception, we developed a software and add this on our past developed simulator system. This software control motors of the simulator with data from three dimensional digitizer which senses human motions. And the simulated picture projects on head-mounted display. With this system, subjects can freely observe the space of scale model just like the real space.And we developed the device which shoots the background picture synchronized with aforesaid simulator system. The animation composition system adds this background picture on the picture of the scale model.And using E.E.G.analyzer and the software for the analysis with the simulator system, we can get and analyze the information of the brain in observation.Using this simulator system, we made experiments to test the accuracy of cognition of space. In the scale model space, subjects can recognize a right angle and a straight line nearly equal to the real space. And in the simulation walking in a passage, subjects can recognize a right angle in the passage nearly equal to the real space, too.And we made more experiments using this simulator system with E.E.G.analyzing system. When the subjects was observing without motion from small space to large space or from large space to small space in the scale model apace, the correlation coefficient of potential between two electrodes shifted peculiarly in each sequence at some pairs of electrode. But in case of the observation with motion, the tendency of correlation coefficient was different from aforesaid tendency.