Modulation of Beta Bursts in the Subthalamic Nucleus Predicts Motor Performance

Flavie Torrecillos, Gerd Tinkhauser, Petra Fischer, Alexander L. Green, Tipu Z. Aziz, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Keyoumars Ashkan, Peter Brown, Huiling Tan and Green, A. 2018. Modulation of Beta Bursts in the Subthalamic Nucleus Predicts Motor Performance. Journal of Neuroscience. 38 (41), pp. 8905-8917. https://doi.org/10.1523/jneurosci.1314-18.2018

TitleModulation of Beta Bursts in the Subthalamic Nucleus Predicts Motor Performance
TypeJournal article
AuthorsFlavie Torrecillos, Gerd Tinkhauser, Petra Fischer, Alexander L. Green, Tipu Z. Aziz, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Keyoumars Ashkan, Peter Brown, Huiling Tan and Green, A.
Abstract

Considerable evidence suggests a role of beta-band oscillations in voluntary movements. However, most of the studies linking beta power to motor performance are based on data averaged across trials that ignore the fast dynamics of oscillatory activity and trial-to-trial variations in motor responses. Recently, emphasis has shifted from the functional implications of the mean beta power to the presence and nature of episodic bursts of beta activity. Here we test the hypothesis that beta bursts, though short in duration in more physiological state, may help explain spontaneous variations in motor behavior of human adults at the single-trial level. To this end, we recorded local field potential activity from the subthalamic nucleus of parkinsonian patients of both genders whose motor behavior had been normalized as far as possible through treatment with the dopamine prodrug, levodopa. We found that beta bursts present in a time-limited window well before movement onset in the contralateral subthalamic nucleus reduce the peak velocity of that movement and that this effect is further amplified by the amplitude of the burst. Additionally, prolonged reaction times are observed when bursts occur immediately after the GO cue. Together, these results suggest that the modulation of the timing and amplitude of beta bursts might serve to dynamically adapt motor performance. These results offer new insight in the pathology of Parkinson's disease, and suggest that beta bursts whose presence and nature are modulated by context may have a physiological role in modulating behavior.

JournalJournal of Neuroscience
Journal citation38 (41), pp. 8905-8917
ISSN1529-2401
0270-6474
Year2018
PublisherSociety for Neuroscience
Digital Object Identifier (DOI)https://doi.org/10.1523/jneurosci.1314-18.2018
Web address (URL)https://doi.org/10.1523/JNEUROSCI.1314-18.2018
Publication dates
Published10 Oct 2018

Related outputs

Understanding Autonomic Control via Human Deep Brain Stimulation
Green, A. 2021. Understanding Autonomic Control via Human Deep Brain Stimulation. PhD thesis University of Westminster School of Life Sciences https://doi.org/10.34737/vvqy6

Permalink - https://westminsterresearch.westminster.ac.uk/item/vv059/modulation-of-beta-bursts-in-the-subthalamic-nucleus-predicts-motor-performance


Share this

Usage statistics

24 total views
0 total downloads
These values cover views and downloads from WestminsterResearch and are for the period from September 2nd 2018, when this repository was created.