#ca3 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #ca3, aggregated by home.social.
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🧠 How does the #hippocampus keep a spatial map stable while adding aversive context?
Miguel-López et al. show that in mice running on a linear belt, #CA3 #axonal population activity preserved a common spatial #manifold across baseline, air puff and probe sessions. The aversive cue did not erase the map, but deformed it, embedding affective information into the same #representational geometry:
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🧠 How does the #hippocampus keep a spatial map stable while adding aversive context?
Miguel-López et al. show that in mice running on a linear belt, #CA3 #axonal population activity preserved a common spatial #manifold across baseline, air puff and probe sessions. The aversive cue did not erase the map, but deformed it, embedding affective information into the same #representational geometry:
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Modeling suggests that sparse #CA3 input can speed up #learning of new #SpatialMaps, while dense #CA1 coding provides a more efficient, compressed representation for large-scale #navigation.
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#Neuroscience #Hippocampus #SpatialNavigation #NeuralDynamics
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Modeling suggests that sparse #CA3 input can speed up #learning of new #SpatialMaps, while dense #CA1 coding provides a more efficient, compressed representation for large-scale #navigation.
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#Neuroscience #Hippocampus #SpatialNavigation #NeuralDynamics
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New paper by Maimon et al (Ulanovsky lab): recordings from #bats flying through tunnels up to 200 m reveal a sparse-to-dense transformation between #hippocampal #CA3 and #CA1.
In small environments, CA3 and CA1 #PlaceCells look similar. At large spatial scales, however, CA3 #neurons mostly show single, ultrasparse #PlaceFields, while CA1 neurons show dense multifield coding.
🌍 https://doi.org/10.1038/s41586-026-10537-0
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#Neuroscience #Hippocampus #SpatialNavigation #NeuralDynamics
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New paper by Maimon et al (Ulanovsky lab): recordings from #bats flying through tunnels up to 200 m reveal a sparse-to-dense transformation between #hippocampal #CA3 and #CA1.
In small environments, CA3 and CA1 #PlaceCells look similar. At large spatial scales, however, CA3 #neurons mostly show single, ultrasparse #PlaceFields, while CA1 neurons show dense multifield coding.
🌍 https://doi.org/10.1038/s41586-026-10537-0
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#Neuroscience #Hippocampus #SpatialNavigation #NeuralDynamics
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There will be a talk by Peter Jonas (ISTAustria) on "#Synaptic mechanisms of #patterncompletion in the #hippocampal #CA3 region":
⏰ Thu July 27 at 4.15pm CEST
🌎 https://t.co/tlk4CorzwE
📍 University of #Tübingen, Hertie-Institut für klinische Hirnforschung (HIH), Host: Ulrike Hedrich