Constructing scenes from objects in human occipitotemporal cortex.
Constructing scenes from objects in human occipitotemporal cortex.
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DOI：
10.1038/nn.2903
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发表时间：
2011-09-04
影响因子：
25
通讯作者：
Epstein RA
中科院分区：
文献类型：
--
作者：
MacEvoy SP;Epstein RA
我们使用功能性磁共振成像（fMRI）来证明人类外侧枕叶（LO）皮质中存在一种机制，该机制支持通过对场景内对象的并行分析来识别真实世界的视觉场景。在三个实验中，当受试者观看四类场景和八类与场景密切相关的“签名”对象时，记录了神经活动。多体素模式引起的场景在LO的预测以及由他们的签名对象引起的模式的平均值。与此相反，有没有在海马旁位置区（PPA）的场景和对象模式之间的关系，即使这个区域强烈响应的场景，并被认为在场景识别中发挥了至关重要的作用。通过组合关于场景内的多个对象的信息，LO可以支持用于场景识别的基于对象的通道，其补充PPA中的全局场景属性的处理。
We used functional magnetic resonance imaging (fMRI) to demonstrate the existence of a mechanism in human lateral occipital (LO) cortex that supports recognition of real-world visual scenes through parallel analysis of within-scene objects. Neural activity was recorded while subjects viewed four categories of scenes and eight categories of “signature” objects strongly associated with the scenes in three experiments. Multi-voxel patterns evoked by scenes in LO were well-predicted by the average of the patterns elicited by their signature objects. In contrast, there was no relationship between scene and object patterns in the parahippocampal place area (PPA) even though this region responds strongly to scenes and is believed to play a critical role in scene identification. By combining information about multiple objects within a scene, LO may support an object-based channel for scene recognition that complements processing of global scene properties in the PPA.
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影响因子：
9.8
作者：
Haushofer, Johannes;Livingstone, Margaret S.;Kanwisher, Nancy
通讯作者：
Kanwisher, Nancy
影响因子：
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通讯作者：
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作者：
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