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1. www.nature.com › articles › s41586/024/07139-zSubicular neurons encode concave and convex geometries

   www.nature.com › articles › s41586/024/07139-z

   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 ...

2. www.ncbi.nlm.nih.gov › pmc › articlesSubicular neurons encode concave and convex geometries

   www.ncbi.nlm.nih.gov › pmc › articles

   Mar 6, 2024 · Earlier work has demonstrated that neurons in the subiculum encode the locations of environmental boundaries and objects in an allocentric reference frame, as well as the axis of travel in multi-path environments 25, 33 – 35. Here, we describe single-cell neural representations for concave and convex environmental corners and curvatures in ...

   • DOI: 10.1038/s41586-024-07139-z
   • Published: 2024

   • Publication: Nature. 2024; 627(8005): 821-829.

3. medschool.uci.edu › news › study-reveals-new-brainStudy reveals new brain ‘corner’ cells that encode ...

   medschool.uci.edu › news › study-reveals-new-brain

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   Mar 6, 2024 · 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. Irvine, Calif., March. 06, 2024 — A research team co-led by the University of California, Irvine ...

4. cncm.som.uci.edu › 2024/03/06 › study-reveals-newStudy reveals new brain ‘corner’ cells that encode ...

   cncm.som.uci.edu › 2024/03/06 › study-reveals-new

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   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.

5. www.nature.com › articles › s41583/024/00811-3Coding corners - Nature Reviews Neuroscience

   www.nature.com › articles › s41583/024/00811-3

   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 ...

   • Author: Katherine Whalley

   • Email: nrn@nature.com

6. www.researchgate.net › publication › 378773464Subicular neurons encode concave and convex geometries

   www.researchgate.net › publication › 378773464

   Mar 6, 2024 · brain encodes the concave and conve x curvatures of an environment (for example, corners and curved protrusions), in addition to straight boundaries 24 , 25 , 29 .

7. People also ask

   Does the brain encode concave and convex curvatures?

   • 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 and curved protrusions), in addition to straight boundaries 24, 25, 29.

   Subicular neurons encode concave and convex geometries

   www.nature.com/articles/s41586-024-07139-z

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   Which brain region encoding concave and convex environmental features?

   • One brain region that could play a role in encoding concave and convex environmental features is the subiculum, a structure that receives highly convergent inputs from both the hippocampal subregion CA1 and the entorhinal cortex 31, 32.

   Subicular neurons encode concave and convex geometries

   www.nature.com/articles/s41586-024-07139-z

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   Do neurons encode concavity and convexity in the dorsal subiculum?

   • However, the neural substrates that could underlie the perception of concavity and convexity in the environment remain elusive. Here we show that the dorsal subiculum contains neurons that encode corners across environmental geometries in an allocentric reference frame.

   Subicular neurons encode concave and convex geometries

   www.nature.com/articles/s41586-024-07139-z

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   Does the subiculum encode concave and convex curvature?

   • Together, our results indicate that the subiculum encodes the concave and convex curvature of the environment through distinct neuronal populations. Fig. 5: Corner cells generalize their activity to encode environmental concavity and convexity. a, Schematic of the arenas. Orange bars indicate visual cues.

   Subicular neurons encode concave and convex geometries

   www.nature.com/articles/s41586-024-07139-z

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   Do subicular neurons encode convex corners?

   • A separate population of subicular neurons encode convex corners of both larger environments and discrete objects. Both corner cells are non-overlapping with the population of subicular neurons that encode environmental boundaries.

   Subicular neurons encode concave and convex geometries

   www.nature.com/articles/s41586-024-07139-z

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8. link.springer.com › article › 10Processing convexity and concavity along a 2-D contour ...

   link.springer.com › article › 10

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   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 ...