The time-course of real-world scene perception: Spatial and semantic processing.
The time-course of real-world scene perception: Spatial and semantic processing.
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真实世界场景感知的时间过程:空间和语义处理。
DOI:
10.1016/j.isci.2022.105633
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发表时间:
2022-12-22
期刊:
影响因子:
5.8
通讯作者:
Adams, Wendy J.
中科院分区:
文献类型:
--
作者:
Anderson, Matt D.;Elder, James H.;Graf, Erich W.;Adams, Wendy J.
Real-world scene perception unfolds remarkably quickly, yet the underlying visual processes are poorly understood. Space-centered theory maintains that a scene’s spatial structure (e.g., openness, mean depth) can be rapidly recovered from low-level image statistics. In turn, the statistical relationship between a scene’s spatial properties and semantic content allows for semantic identity to be inferred from its layout. We tested this theory by investigating (1) the temporal dynamics of spatial and semantic perception in real-world scenes, and (2) dependencies between spatial and semantic judgments. Participants viewed backward-masked images for 13.3 to 106.7 ms, and identified the semantic (e.g., beach, road) or spatial structure (e.g., open, closed-off) category. We found no temporal precedence of spatial discrimination relative to semantic discrimination. Computational analyses further suggest that, instead of using spatial layout to infer semantic categories, humans exploit semantic information to discriminate spatial structure categories. These findings challenge traditional ‘bottom-up’ views of scene perception. Spatial structure and semantic perception share a similar time-course Humans infer spatial structure from semantics shortly after image onset Yet, humans do not reliably infer semantics from spatial structure Biological sciences; Neuroscience; Sensory neuroscience
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