Cortico-basal oscillations index naturalistic movements during deep brain stimulation.
Overview
- Joint Graduate Program in Bioengineering, University of California, Berkeley, and University of California, San Francisco, Berkeley, CA 94720, USA
- Department of Psychology, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA
- Department of Public Health, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Statistics, London School of Economics and Political Science, London WC2A 2AE, UK
- Department of Neurosurgery, University of California, San Francisco, San Francisco, CA 94143, USA
Abstract
The basal ganglia and sensorimotor cortex are essential nodes of a network that supports motor control. In Parkinson’s disease, disruptions in this network lead to rigidity and slowness during movement execution. Deep brain stimulation (DBS) of the basal ganglia has proved effective in alleviating Parkinson’s disease-related hypokinetic symptoms, and sensing-enabled neurostimulators now afford the opportunity to detect cortico-basal oscillations during motion. However, the specific contributions of these motor network nodes to chronic, naturalistic movement and the effects of DBS on circuit dynamics are not well understood.
To address these gaps, we recorded >530 h of cortical and subcortical signals from 15 Parkinson’s disease patients (27 hemispheres) during unsupervised, unconstrained daily activities and subthalamic or pallidal DBS. Synchronized wrist-worn accelerometers tracked forearm speeds, supporting the evaluation of neural biomarkers related to motion. Our study validated and extended the known relationship between cortical and subcortical beta power (13–30 Hz) and movement. We showed that cortical low (13–20 Hz) and high (21–30 Hz) beta movement-related desynchronization effectively distinguished between mobile and stationary states. In the subthalamic nucleus and globus pallidus interna, high beta movement-related desynchronization and gamma (40–80 Hz) movement-related synchronization exhibited significant group-level correlations with movement kinematics. When stimulated at 130 Hz, cortical stimulation-entrained gamma oscillations at the half-harmonic (∼65 Hz) were observed. Furthermore, cortical entrained gamma movement-related synchronization was a stronger predictor of motion than broadband gamma movement-related synchronization.
We developed machine learning models to predict naturalistic movement over extended periods using spectral features from brief neural recordings (0.5–8 s epochs). Cortical models outperformed subcortical models, although combining cortico-basal signals yielded the highest model performance (area under the curve > 0.85 for binary movement state classifiers; Pearson’s r statistic > 0.68 for continuous forearm speed regressors). Higher DBS current amplitudes were associated with reduced beta movement-related desynchronization and low gamma (40–60 Hz) movement-related synchronization in the subthalamic nucleus and globus pallidus interna. This negatively impacted the accuracy of the subcortical models, whereas cortical and cortico-basal model performance remained stable across stimulation amplitudes.
Our study demonstrates that cortico-basal nodes of the motor network encode complementary kinematic information, which can be integrated to enhance the accuracy and stability of chronic, naturalistic movement decoding during deep brain stimulation. These insights support the development and integration of therapeutic brain–computer interfaces with closed-loop, adaptive DBS to leverage rapid and precise movement-predictive models for the treatment of motor network disorders.
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De-identified, processed neural and accelerometry data can be provided upon request according to the data-sharing policies of the National Institutes of Health (NIH).
Reproduced under the paper's license (CC BY), from the paper cited above.
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Version 1, 27 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 7 authors, 6 keywords, 11 MeSH terms, 1 funder, 58 references.
Cite
This paper
Lawrence, D. J., Avraham, G., Yao, J., Li, L., Shi, C., Starr, P. A., & Little, S. J. (2026). Cortico-basal oscillations index naturalistic movements during deep brain stimulation. Brain : a journal of neurology, 149(8), 2702-2715. https://
BibTeX
@article{lawrence2026cor
author = {Lawrence, Daryl J and Avraham, Guy and Yao, Jiaang and Li, Lexin and Shi, Chengchun and Starr, Philip A and Little, Simon J},
title = {{Cortico-basal oscillations index naturalistic movements during deep brain stimulation}},
journal = {Brain : a journal of neurology},
year = {2026},
month = aug,
volume = {149},
number = {8},
pages = {2702--2715},
publisher = {Oxford University Press},
issn = {0006-8950},
doi = {10.1093/
url = {https://
pmid = {41399243},
pmcid = {PMC13431667}
}
RIS
TY - JOUR
AU - Lawrence, Daryl J
AU - Avraham, Guy
AU - Yao, Jiaang
AU - Li, Lexin
AU - Shi, Chengchun
AU - Starr, Philip A
AU - Little, Simon J
TI - Cortico-basal oscillations index naturalistic movements during deep brain stimulation
T2 - Brain : a journal of neurology
J2 - Brain
PY - 2026
DA - 2026/
VL - 149
IS - 8
SP - 2702
EP - 2715
SN - 0006-8950
PB - Oxford University Press
DO - 10.1093/
UR - https://
LA - en
ER -
CSL-JSON
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