📖 Vaidya et al. investigate how #hippocampal #CA1 #PlaceCells form expanding #memory representations over days. Using longitudinal in vivo recordings, they show that stable #PlaceFields progressively emerge as active cells increase their likelihood of remaining active across sessions. This gradual stabilization hinges on #behavioral‑timescale #SynapticPlasticity, offering a new model of how CA1 memories solidify w/o #CatastrophicOverwriting.

🌍 https://www.nature.com/articles/s41593-025-01986-3

#Hippocampus #Neuroscience

And as an added bonus: Dileep George, one of the authors of the paper, just shared a #JupyterNotebook demo 🐍📔. You can explore the #CSCG model, visualize #PlaceFields, and inspect the learned #latent #graphs 📈 Just try it out, it's great fun 👌

🌍 https://colab.research.google.com/drive/1kgjuoz_Noo7uV87StSbW7T8-IBQmPOLE?usp=sharing#scrollTo=7jnInNH7RUAX

#Hippocampus #CognitiveMaps #CSCG #Neuroscience #ComputationalModeling #CompNeuro

This paper by Raju et al. proposes a unified model – “clone‑structured causal #graphs” (#CSCG) – for #hippocampal #SpatialCoding. It suggests that #SpatialMaps arise from #learning #latent higher‑order sequences rather than representing #EuclideanSpace directly. The model elegantly explains phenomena like #PlaceFields, #SplitterCells, #contextual #remapping, and predicts when #PlaceFieldMapping may mislead.

🌍 https://www.science.org/doi/10.1126/sciadv.adm8470

#Hippocampus #CognitiveMaps #SequenceLearning #Neuroscience

New review on the “spatial cells” across different species! Looks very interesting:
Neural mechanisms for spatial cognition across vertebrates
Vinepinsky & Segev 2023

Small but important comment: it is perfectly normal for place cells to have multiple #PlaceFields ! Only in very small environments (<80cm diameter) will you mostly see single-field place cells. The single field is probably more the exception than the rule in the natural world.

#NeuroPaper #Review #Neuroscience #PlaceCells #HeadDirectionCells #GridCells #BVCs #CrossSpecies