Distributed neural codes of the 3D position in the marmoset frontal cortex and hippocampus
Chuanyao Felix Wei, Jiankang Xi, Jingyi Xie, Xiaojia Zhu, Haotian Yan, Xin Wang, Zhengtuo Zhao, Cirong Liu, Chun Xu · 2026
Read Distributed neural codes of the 3D position in the marmoset frontal cortex and hippocampus by Chuanyao Felix Wei, Jiankang Xi, Jingyi Xie, Xiaojia Zhu, Haotian Yan, Xin Wang, Zhengtuo Zhao, Cirong Liu, Chun Xu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13376620.txt.
Description
Chuanyao Felix Wei and co-authors record how marmoset brains encode three-dimensional position, in this 2026 Europe PMC paper. Knowing where you are in space is basic to navigation, but primate 3D positioning was poorly understood. Wireless recordings from frontal cortex and hippocampus were taken while marmosets foraged freely in a 3D arena.
Substantial shares of neurons in both regions acted as place cells, firing for particular locations. The two populations carried similar spatial information and stability, and place cells were more strongly interconnected than other neurons. Their fields clustered near the arena's center and borders. A recurrent network model reproduced the pattern, supporting a distributed frontal-hippocampal 3D positioning system.
Catalog record
| CREATOR | Chuanyao Felix Wei, Jiankang Xi, Jingyi Xie, Xiaojia Zhu, Haotian Yan, Xin Wang, Zhengtuo Zhao, Cirong Liu, Chun Xu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 67 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |