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Mar 6, 2024 · Given that the combination of straight lines and curves can give rise to any shape, we hypothesized that the brain encodes the concave and convex curvatures of an environment (for example, corners ...
Mar 6, 2024 · Furthermore, corner cells that encode concave or convex corners generalize their activity such that they respond, respectively, to concave or convex curvatures within an environment. Together, our findings suggest that the subiculum contains the geometric information needed to reconstruct the shape and layout of naturalistic spatial environments.
- 10.1038/s41586-024-07139-z
- 2024
- Nature. 2024; 627(8005): 821-829.
Mar 6, 2024 · Spatial firing rate maps of geometric coding cell types in the subiculum of the brain. The color scale codes the level of neural firing activity (red for high, blue for low). From left to right, concave, convex and straight environmental features are respectively encoded by corner cells (concave or convex) and boundary vector cells.
Mar 6, 2024 · A research team co-led by the University of California, Irvine, Stanford University and the University of California, San Diego has discovered that there are special neurons dedicated to representing the convex and concave features of environments (commonly referred to as “corners”) in their study of the brain’s spatial mapping system.
Mar 14, 2024 · The encoding of the cells also generalizes to other concave curvatures in the environment, such as high-concavity regions of an oval arena. Next, the authors asked whether subiculum neurons also ...
- Katherine Whalley
- nrn@nature.com
May 7, 2023 · Corners are a cardinal feature of many of the complex environmental geometries found in the natural world but the neural substrates that could underlie the perception of corners remain elusive. Here we show that the dorsal subiculum contains neurons that encode corners across environmental geometries in an allocentric reference frame. Corner cells changed their activity to reflect concave ...
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Does the brain encode concave and convex curvatures?
Which brain region encoding concave and convex environmental features?
Do neurons encode concavity and convexity in the dorsal subiculum?
Do subicular neurons encode convex corners?
Does the subiculum encode concave and convex curvature?
Nov 27, 2012 · Interest in convexity has a long history in vision science. For smooth contours in an image, it is possible to code regions of positive (convex) and negative (concave) curvature, and this provides useful information about solid shape. We review a large body of evidence on the role of this information in perception of shape and in attention. This includes evidence from behavioral ...
