Extended Data Fig. 5. Behaviour and neural activity for mice performing a grasping and pulling task.

A) Hand trajectories of every session included in this work (notice that two mice have two sessions each). Each line represents one trial, colour coded by target (left, yellow; green, right; see inset). Circle, initial hand position. Scale bar, 1 mm. B) Distribution of the behavioural correlations for all pairs of trials from every session. Grey circle, mean. C) Example normalized motor cortical firing rates aligned to movement onset for two different mice (top) and corresponding hand trajectories (bottom). Each column, one reach to each of the two directions. Arrows on top of each column, reach direction, colour coded as in (A). D) Similar to (C) but showing the striatal activity during the same example movements. E) Cumulative neural variance explained as a function of the number of neural modes included, colour coded by brain region.