Monitoring subthalamic oscillations for 24 hours in a freely moving Parkinson's disease patient.
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ABSTRACT:
SUBMITTER: Arlotti M
PROVIDER: S-EPMC6593659 | biostudies-literature | 2019 May
REPOSITORIES: biostudies-literature
Publications
Monitoring subthalamic oscillations for 24 hours in a freely moving Parkinson's disease patient.
Arlotti Mattia M Palmisano Chiara C Minafra Brigida B Todisco Massimiliano M Pacchetti Claudio C Canessa Andrea A Pozzi Nicoló G NG Cilia Roberto R Prenassi Marco M Marceglia Sara S Priori Alberto A Rampini Paolo P Barbieri Sergio S Servello Domenico D Volkmann Jens J Pezzoli Gianni G Isaias Ioannis U IU
Movement disorders : official journal of the Movement Disorder Society 20190320 5
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Project description:ObjectiveThis study aims to use the activities recorded directly from the deep brain stimulation (DBS) electrode to address the focality and distinct nature of the local field potential (LFP) activities of different frequency.MethodsPre-operative and intra-operative magnetic resonance imaging (MRI) were acquired from patients with Parkinson's disease (PD) who underwent DBS in the subthalamic nucleus and intra-operative LFP recording at rest and during cued movements. Images were reconstructed and 3-D visualized using Lead-DBS® toolbox to determine the coordinates of contact. The resting spectral power and movement-related power modulation of LFP oscillations were estimated.ResultsBoth subthalamic LFP activity recorded at rest and its modulation by movement had focal maxima in the alpha, beta and gamma bands. The spatial distribution of alpha band activity and its modulation was significantly different to that in the beta band. Moreover, there were significant differences in the scale and timing of movement related modulation across the frequency bands.ConclusionSubthalamic LFP activities within specific frequency bands can be distinguished by spatial topography and pattern of movement related modulation.SignificanceAssessment of the frequency, focality and pattern of movement related modulation of subthalamic LFPs reveals a heterogeneity of neural population activity in this region. This could potentially be leveraged to finesse intra-operative targeting and post-operative contact selection.
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