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- 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.
cncm.som.uci.edu/2024/03/06/study-reveals-new-brain-corner-cells-that-encode-environmental-geometry/
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,...
Mar 6, 2024 · The study titled “Subicular neurons encode concave and convex geometries” is published today online in the journal Nature. The discovery was made possible by extensive and close collaboration among Drs. Yanjun Sun (Stanford), Douglas A. Nitz (UCSD), Xu Xiangmin (UCI) and Lisa Giocomo (Stanford).
Mar 6, 2024 · From left to right, concave, convex and straight environmental features are respectively encoded by corner cells (concave or convex) and boundary vector cells. UC Irvine, Stanford University and UC San Diego team up for breakthrough research in the brain’s spatial mapping system.
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 .
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 5, 2023 · Findings of shape processing in V4 provide evidence for selectivity to two curvature components: curvature magnitude (deviation from a straight line) and curvature sign (convexity-concavity, determined according to a set origin), together defining the scalar called signed curvature.
People also ask
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?
Does the subiculum encode concave and convex curvature?
Do subicular neurons encode convex corners?
Jan 1, 2006 · The stimulus set included convex, concave and outline angles and curves that pointed in one of eight directions at 45° intervals (orientation 45°, 90°, etc.) and subtended one of three angular extents (acuteness: 45°, 90°, 135°). Four edges and lines were also included for a total of 156 stimuli.
