Duration-modulated neural population dynamics in humans during BMI controls
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866915604033699840 |
|---|---|
| author | Yin, Fei Guan, Charles Aflalo, Tyson Gamez, Jorge Pejsa, Kelsie Rosario, Emily Liu, Charles Bari, Ausaf Andersen, Richard |
| author_facet | Yin, Fei Guan, Charles Aflalo, Tyson Gamez, Jorge Pejsa, Kelsie Rosario, Emily Liu, Charles Bari, Ausaf Andersen, Richard |
| contents | The motor cortex (MC) is often described as an autonomous dynamical system during movement execution. In an autonomous dynamical system, flexible movement generation depends on reconfiguring the initial conditions, which then unwind along known dynamics. An open question is whether these dynamics govern MC activity during brain-machine interface (BMI) control. We investigated MC activity during BMI cursor movements of multiple durations, ranging from hundreds of milliseconds to sustained over seconds. These durations were chosen to cover the range of movement durations necessary to control modern BMIs under varying precision levels. Movements shared their MC initial condition with movements of different durations in the same direction. Long-duration movements sustained MC activity, effectively pausing the neural population dynamics until each movement goal was reached. The difference across durations in MC population dynamics may be attributed to external inputs. Our results highlight the role of sustained inputs to MC during movement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_04887 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Duration-modulated neural population dynamics in humans during BMI controls Yin, Fei Guan, Charles Aflalo, Tyson Gamez, Jorge Pejsa, Kelsie Rosario, Emily Liu, Charles Bari, Ausaf Andersen, Richard Neurons and Cognition The motor cortex (MC) is often described as an autonomous dynamical system during movement execution. In an autonomous dynamical system, flexible movement generation depends on reconfiguring the initial conditions, which then unwind along known dynamics. An open question is whether these dynamics govern MC activity during brain-machine interface (BMI) control. We investigated MC activity during BMI cursor movements of multiple durations, ranging from hundreds of milliseconds to sustained over seconds. These durations were chosen to cover the range of movement durations necessary to control modern BMIs under varying precision levels. Movements shared their MC initial condition with movements of different durations in the same direction. Long-duration movements sustained MC activity, effectively pausing the neural population dynamics until each movement goal was reached. The difference across durations in MC population dynamics may be attributed to external inputs. Our results highlight the role of sustained inputs to MC during movement. |
| title | Duration-modulated neural population dynamics in humans during BMI controls |
| topic | Neurons and Cognition |
| url | https://arxiv.org/abs/2511.04887 |