Author

Rogério Guimarães

California Institute of Technology

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Open access Sep 2026

Rapid spatial cognition in mice, with and without neocortex and hippocampus

Rapid learning, memory, and generalization are often attributed to the neocortex and hippocampus. We examined these cognitive abilities in mice navigating a reconfigurable 3D labyrinth. Naïve wildtype mice solved a complex route within a few rewards, generalized to similar problems, and learned to favor a decision far...

Jie Zheng, Rogério Guimarães, Zeynep Turan et al. · bioRxiv · 0 citations

Jul 2026

Inference-Time Scaling of Diffusion Models via Progressive Seed Pruning

Progressive Seed Pruning consistently improves reward-guided selection and achieves higher GenEval scores (automated) and better human evaluation on prompt-alignment than best-of-$N$, importance-sampling, and tree-search baselines at matched compute.

Rogério Guimarães, Pietro Perona · arXiv.org · 0 citations