Ever wonder how your brain navigates the real world? đ§
Most spatial navigation studies use flat, 2D mazes.
But the real world is hilly, irregular, and bumpy! â°ď¸
Our new paper in #ScienceAdvances asked a simple question: How does the brain map uneven terrain?
đ doi.org/10.1126/scia...
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Very excited to announce the first preprint from the lab @ucsantabarbara.bsky.social -- "Predictive pursuit emerges in high-dimensional RNNs." @wtredman.bsky.social (starting his own group at JHU this fall) summarizes the work nicely in this thread.
đ¨ New paper in @nature.com
We asked why two hippocampal areas with very different anatomy, CA3 and CA1, often seem to code space so similarly?
By recording bats flying up to 200m, we found that the difference was hidden by scale!
www.nature.com/articles/s41...
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Now in PRE: "Transient dynamics of associative memory models." I argue that the "blackout catastrophe" is not catastrophic when viewed from an out-of-equilibrium, dynamical perspective.
Journal: journals.aps.org/pre/abstract/10.1103/42y2-bsh1
PDF: dclark.io/media/clark-...
Video
The hippocampus exhibits a CA3-to-CA1 coding transformation that combines fast learning with an efficient, compressed neural code.
Associative memory models such as the Hopfield network and its dense generalizations with higher-order interactions exhibit a ``blackout catastrophe''---a discontinuous transition where stable memory ...
New preprint out đ¨ âPredictive pursuit emerges in high-dimensional recurrent neural networksâ! This was an awesome collaboration with co-first author @fatihdinc.bsky.social , @andyalexander.bsky.social, @xiaoxiao-lin.bsky.social, and May Chen biorxiv.org/content/10.6... 1/
