Mice fidget. Those motions have big effects on their brains
Extra movements may shape thinking, a study hints
![mice brains](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/09/092519_ls_fidgety-mice_feat.jpg?fit=1030%2C579&ssl=1)
In the brains of mice trained to do a job, nerve cell activity (shown) is more tightly linked to irrelevant body movements than to the job itself, researchers found.
A. Churchland