Sensory expectations shape neural population dynamics in motor circuits

The neural basis of movement preparation has been extensively studied during self-initiated actions where motor cortical activity during preparation shows a lawful relationship to the parameters of the subsequent action. However, movements are regularly triggered or corrected based on sensory inputs caused by disturbances to the body. Since such disturbances are often predictable and since preparing for disturbances would make movements better, we hypothesized that expectations about sensory inputs also influence preparatory activity in motor circuits. Here we show that when humans and monkeys are probabilistically cued about the direction of future mechanical perturbations, they incorporate sensory expectations into their movement preparation and improve their corrective responses. Using high-density neural recordings, we establish that sensory expectations are widespread across the brain, including the motor cortical areas involved in preparing self-initiated actions. The geometry of ..., , # Data from: Sensory expectations shape neural population dynamics in motor circuits

Dataset DOI: [10.5061/dryad.0vt4b8hbr](https://doi.org/10.5061/dryad.0vt4b8hbr)

## Description of the data and file structure

Data are stored in matlab (.mat) format

Each file contains neural and behavioral data from one recording session, labeled by monkey and recording session number. Details on each recording session can be found in the Recording Session Info Table. All variables include descriptors that detail the format of the data in each variable.

The variables contained in each recording are:

* \"**neural**\": binary spike timing information for all trials
* \"**kin**\": hand and joint kinematics for all trials
* \"**trial**\": timing and condition information for all trials
* \"**date**\": date and time of recording session

### Files and variables

#### File: Recording_Session_Info_Table.pdf

**Description:** Information about each recording session, including date, monkey, trials, neurons, brai...,