Meet & discuss with the 3 winning teams 🏆 of the 🌍-wide Algonauts Challenge 2025 (@algonautsproject.bsky.social).
Join us for a deep dive into predicting 🧠 activity from natural movies with teams from @mpicbs.bsky.social & Meta Research.
🗓️ April 21 | 4 PM (CET)
📍 MPI CBS & Zoom (link below)
8/N: The fact that Disco captures such a diverse set of neural activity, suggests to us that discontinuity coding could reflect a key principle underlying neural activity in the subiculum. A lot more in the manuscript. We hope it will be interesting to the community.
7/N: Tracking a running average of the population activity in the sub, we find that rapid changes in the subicular population activity can signal event boundaries (temporal discontinuities), across numerous environmental configurations (including in hairpin mazes).
6/N: In purely non-spatial settings, detecting discontinuities in behavioral state (e.g., an animal’s velocity) yields neural firing along principal movement axes (Olson et al. (2017) in narrow corridors but diffusive activity in open fields.
5/N: The framework is quite general: we show predictions for 3D arenas and natural scenes. We also suggest that mixed-modality coding of spatial and non-spatial variables drives BVCs to respond to a traversable stripe on the floor.
4/N: We reproduce corner cell activity for diverse settings (concave, convex, inserted corner, cylindrical and oval arena, high and low curvature objects). Some corner cells that would normally not be classified as corner cells in experiments could map onto other reported cells.
3/N: Coded in a vector-base, discontinuities between perceived surfaces drive responses to walls, drops, objects, holes, corners, curved surfaces. Moving to 3D we get a dedicated tuning function for corner cells (Sun et al. 2024) that appears complementary to that of BVCs.
2/N: Disco accounts for seemingly disparate neural phenomena with a common organizing principle: given a continuous flow of experience, neuronal selectivity can be understood as responses to discontinuities in that flow.
1/N: Dear colleagues, I would like to share a new paper on the subiculum, part of my PhD with the Neural Computation Group @andrejbicanski.bsky.social @mpicbs.bsky.social . We present “A theory of subicular function and generalized vector coding” that we call Disco. www.biorxiv.org/content/10.6...
New book on navigation (open access). The result of the Ernst Strüngemann Forum 2024. Was great to be there and discuss for a week with 50+ wonderful colleagues. Many thanks to the organizers, Julia Lupp + ESF team, the editors
@noranewcombe.bsky.social, Ken Cheng
link.springer.com/book/10.1007...