中文摘要：

在在视觉外皮的目标表示的 fMRI 实验，我们设计了刺激的二种类型：一个人是绘画的灰色的脸图象和它的线，并且其它是幻想和它的相应完成的幻想。他们俩与不同极小的细节有一样的全球特征以便 fMRI 实验的结果能与对方相比。第一种视觉刺激在一个块设计 fMRI 实验被使用，并且第二在一个事件相关的 fMRI 实验被使用。比较并且分析有趣的视觉外皮活动模式和血氧化水平依赖者(粗体) fMRI 信号，我们获得了结果显示出视觉图象的全球特征的某不变性。关于不变的机制的貌似合理的解释与外皮 V1 从更高的外皮与形状感觉的反馈与对视觉图象的全球特征的同步反应的合作有关，也就是全球特征的集成和稀少的表示和分布式的人口代码的化身。

英文摘要：

In fMRI experiments on object representation in visual cortex, we designed two types of stimuli： one is the gray face image and its line drawing, and the other is the illusion and its corresponding completed illusion. Both of them have the same global features with different minute details so that the results of fMRI experiments can be compared with each other. The first kind of visual stimuli was used in a block design fMRI experiment, and the second was used in an event-related fMRI experiment. Comparing and analyzing interesting visual cortex activity patterns and blood oxygenation level dependent （BOLD）- fMRI signal, we obtained results to show some invariance of global features of visual images. A plausible explanation about the invariant mechanism is related with the cooperation of synchronized response to the global features of the visual image with a feedback of shape perception from higher cortex to cortex V1, namely the integration of global features and embodiment of sparse representation and distributed population code.