期刊
NEURON
卷 103, 期 1, 页码 161-+出版社
CELL PRESS
DOI: 10.1016/j.neuron.2019.04.014
关键词
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资金
- Academy of Finland postdoctoral researcher grant [278957]
- British Academy postdoctoral fellowship [PS140117]
- European Research Council starting grant [ERC-2010-StG 261352]
- Academy of Finland (AKA) [278957] Funding Source: Academy of Finland (AKA)
- MRC [MC_U105597120] Funding Source: UKRI
Successful visual navigation requires a sense of the geometry of the local environment. How do our brains extract this information from retinal images? Here we visually presented scenes with all possible combinations of five scene-bounding elements (left, right, and back walls; ceiling; floor) to human subjects during functional magnetic resonance imaging (fMRI) and magnetoencephalography (MEG). The fMRI response patterns in the scene-responsive occipital place area (OPA) reflected scene layout with invariance to changes in surface texture. This result contrasted sharply with the primary visual cortex (V1), which reflected low-level image features of the stimuli, and the parahippocampal place area (PPA), which showed better texture than layout decoding. MEG indicated that the texture-invariant scene layout representation is computed from visual input within similar to 100 ms, suggesting a rapid computational mechanism. Taken together, these results suggest that the cortical representation underlying our instant sense of the environmental geometry is located in the OPA.
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