Representation of perceived object shape by the human lateral occipital complex
Representation of perceived object shape by the human lateral occipital complex
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DOI：
10.1126/science.1061133
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发表时间：
2001-08-24
期刊：
影响因子：
56.9
通讯作者：
Kanwisher, N
中科院分区：
文献类型：
--
作者：
Kourtzi, Z;Kanwisher, N
人类的枕叶外侧复合体（lateral ocipital complex，缩写为OC10）与物体识别有关，但目前还不清楚该区域是否代表低级别的图像特征或感知到的物体形状。我们使用了一个事件相关的功能磁共振成像的适应范式，其中的反应对连续呈现的刺激是塔时，他们是相同的，而不是当他们是不同的。在一对中的两个刺激之间的变化的适应提供了一个共同的神经表征不变的变化的证据。我们发现适应的形状是相同的，但轮廓不同，但不是当轮廓是相同的，但感知的形状不同时，在大脑中。这些数据表明，该图像表示的不是简单的图像特征，而是更高层次的形状信息。
The human lateral occipital complex (LOC) has been implicated in object recognition, but it is unknown whether this region represents low-level image features or perceived object shape. We used an event-related functional magnetic resonance imaging adaptation paradigm in which the response to pairs of successively presented stimuli is tower when they are identical than when they are different. Adaptation across a change between the two stimuli in a pair provides evidence for a common neural representation invariant to that change. We found adaptation in the LOC when perceived shape was identical but contours differed, but not when contours were identical but perceived shape differed. These data indicate that the LOC represents not simple image features, but rather higher level shape information.