Organization of reward and movement signals in the basal ganglia and cerebellum

The basal ganglia and the cerebellum are major subcortical structures in the motor system. The basal ganglia have been cast as the reward center of the motor system, whereas the cerebellum is thought to be involved in adjusting sensorimotor parameters. Recent findings of reward signals in the cerebellum have challenged this dichotomous view. To compare the basal ganglia and the cerebellum directly, we recorded from oculomotor regions in both structures from the same monkeys. We partitioned the trial-by-trial variability of the neurons into reward and eye-movement signals to compare the coding across structures. Reward expectation and movement signals were the most pronounced in the output structure of the basal ganglia, intermediate in the cerebellum, and the smallest in the input structure of the basal ganglia. These findings suggest that reward and movement information is sharpened through the basal ganglia, resulting in a higher signal-to-noise ratio than in the cerebellum., See doi: https://doi.org/10.1101/2022.10.01.510246 for complete Methods information., , The data is organized in two folders corresponding to the two tasks described in detail in the Methods section of the [paper](https://www.biorxiv.org/content/10.1101/2022.10.01.510246v2).

**Data Structure Documentation**

Each file corresponds to a single neuron recorded in a single task. The file is a structure called 'data' and contains two important fields:

1.           info

2.           trials

Each field is itself a structure.

info contains general information about the neuron:

1.           cell_ID – an identifier for the neuron.

2.           session – an identifier for the session in which the neuron was recorded

3.           cell_type – The population this neuron belongs to.

4.           electrode – identifier of the electrode the neuron was recorded on.

5.           grade – a number that indicates the quality of sorting, assigned manually (5 – best, 10 – worst. We usually only use neurons with a grade below 7).

6.           task – the task the monkey was performing.

A...