๐ง New by Codol et al. who show that #MotorCortex dynamics are remarkably conserved across #mice, #monkeys, and #humans. Despite very different #behaviors, #NeuralPopulation activity follows similar dynamical rules on low-dimensional #manifolds. Species differences arise mainly from the geometry of trajectories within this shared #DynamicalSystem.
๐ง New preprint by Chericoni et al: #NeuralPopulation activity in the #hippocampus encodes spatial information for different agents (self, prey, gaze) in distinct but related low-dimensional subspaces. The study shows that these representations can be linearly transformed between each other, suggesting a shared geometric code supporting flexible spatial #cognition and multi-agent navigation.
๐ง New preprint by Ruff, Markman, Kim & Cohen (2025): #NeuralPopulation formatting matters for function. In monkeys combining motion and reward, both middle temporal area (#MT) & dorsolateral prefrontal #cortex (#dlPFC) encode both signals. But MT formats them separately, dlPFC integrates them. A recurrent #RNN model predicted, and microstimulation confirmed, distinct #behavioral impacts.
๐ https://www.biorxiv.org/content/10.1101/2025.01.03.631242v1
@juangallego just published a review on how #NeuralManifolds go beyond being a convenient data representation โ they reflect fundamental constraints on #NeuralPopulation activity. Originating in mammalian BCI work (2014), these low-dimensional trajectories shape what neural patterns are learnable and expressible.
๐ https://www.nature.com/articles/s41583-025-00919-0.epdf
#CompNeuro #SystemsNeuroscience #PopulationDynamics #Neuroscience
Preserved #NeuralPopulation dynamics across animals performing similar #behaviour โ #preprint by Safaie et al. (2022)
๐ https://www.biorxiv.org/content/10.1101/2022.09.26.509498v1
Nonlinear #manifolds underlie #NeuralPopulation activity during #behaviour โ new #preprint by Fortunato et al. (2023)
๐ https://www.biorxiv.org/content/10.1101/2023.07.18.549575v2
Fabrizio Musacchio
Fabrizio Musacchio