# Targeted Motor Cortex Stimulation Drives Learned Movements

> Stimulating specific brain cells in mice triggers learned movements without prior movement.
- Title: Targeted Motor Cortex Stimulation Drives Learned Movements
- Summary: Stimulating specific brain cells in mice triggers learned movements without prior movement. Optogenetic stimulation of motor cortex neurons in mice…
- Keywords: motor cortex, optogenetic stimulation, learned movements, mice, neural activity, lever-pressing task, science, Targeted, Motor, Cortex, Stimulation, Drives
- Source: Nature — https://nature.com/articles/s41586-026-11174-3
- Published: 2026-10-14T00:00:00+00:00
- Read time: 1 min
- Topics: motor cortex, optogenetic stimulation, learned movements, mice, neural activity, lever-pressing task, science
## Motor Cortex Activity Pattern
Neural activity in layer 2/3 of primary motor cortex shows a reproducible spatiotemporal pattern during learned movements.
## Stimulation Induces Learned Movements
Brief synchronous stimulation of about 20 neurons whose activity onset precedes voluntary movement induced movements resembling the learned movement.
## Stimulation Predicts Movement Variability
Trial-by-trial variability in optogenetically triggered population activity correlated with variability in induced movements.
## Initial State Determines Outcome
Stimulation induced learned activity without movements in some trials, showing learned activity can arise internally without movement.
## Key takeaway

Optogenetic stimulation of motor cortex neurons in mice reproduces learned movements when neurons are activated at the right time.