
マウスは固定された開始位置と自己運動信号のみを使って、隠された餌の位置を効率的に学習し、認知地図を生成することができる。


coremsg

Animals navigate by learning the spatial layout of their environment. We investigated spatial learning of mice in an open maze where food was hidden in one of a hundred holes. Mice leaving from a stable entrance learned to efficiently navigate to the food without the need for landmarks. We develop a quantitative framework to reveal how the mice estimate the food location based on analyses of trajectories and active hole checks. After learning, the computed “target estimation vector” (TEV) closely approximated the mice’s trajectory and its hole check distribution. We propose that the TEV can be precisely connected to the properties of hippocampal place cells. Finally, we provide the first demonstration that, after learning the location of two food sites, the mice took a shortcut between the sites, demonstrating that they had generated a cognitive map.

Teaser Mice can learn a cognitive map using only a fixed start location and self-motion signals.

### Competing Interest Statement

The authors have declared no competing interest.

Shortcutting from self-motion signals: quantifying trajectories and active sensing in an open maze

マウスは固定された開始位置と自己運動信号に基づいて認知地図を学習できる