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Wilhelm E, Derosiere G, Quoilin C, Cakiroglu I, Paço S, Raftopoulos C, Nuttin B, Duque J. Subthalamic DBS does not restore deficits in corticospinal suppression during movement preparation in Parkinson's disease. Clin Neurophysiol 2024; 165:107-116. [PMID: 38996612 DOI: 10.1016/j.clinph.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/27/2024] [Accepted: 06/03/2024] [Indexed: 07/14/2024]
Abstract
OBJECTIVE Parkinson's disease (PD) patients exhibit changes in mechanisms underlying movement preparation, particularly the suppression of corticospinal excitability - termed "preparatory suppression" - which is thought to facilitate movement execution in healthy individuals. Deep brain stimulation (DBS) of the subthalamic nucleus (STN) being an attractive treatment for advanced PD, we aimed to study the potential contribution of this nucleus to PD-related changes in such corticospinal dynamics. METHODS On two consecutive days, we applied single-pulse transcranial magnetic stimulation to the primary motor cortex of 20 advanced PD patients treated with bilateral STN-DBS (ON vs. OFF), as well as 20 healthy control subjects. Motor-evoked potentials (MEPs) were elicited at rest or during movement preparation in an instructed-delay choice reaction time task including left- or right-hand responses. Preparatory suppression was assessed by expressing MEPs during movement preparation relative to rest. RESULTS PD patients exhibited a deficit in preparatory suppression when it was probed on the responding hand side, particularly when this corresponded to their most-affected hand, regardless of their STN-DBS status. CONCLUSIONS Advanced PD patients displayed a reduction in preparatory suppression which was not restored by STN-DBS. SIGNIFICANCE The current findings confirm that PD patients lack preparatory suppression, as previously reported. Yet, the fact that this deficit was not responsive to STN-DBS calls for future studies on the neural source of this regulatory mechanism during movement preparation.
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Affiliation(s)
- Emmanuelle Wilhelm
- Institute of Neuroscience, Catholic University of Louvain, 1200 Brussels, Belgium; Department of Adult Neurology, Saint-Luc University Hospital, 1200 Brussels, Belgium.
| | - Gerard Derosiere
- Institute of Neuroscience, Catholic University of Louvain, 1200 Brussels, Belgium
| | - Caroline Quoilin
- Institute of Neuroscience, Catholic University of Louvain, 1200 Brussels, Belgium
| | - Inci Cakiroglu
- Institute of Neuroscience, Catholic University of Louvain, 1200 Brussels, Belgium
| | - Susana Paço
- NOVA IMS, Universidade Nova de Lisboa, 1070-312 Lisbon, Portugal
| | | | - Bart Nuttin
- Department of Neurosurgery, UZ Leuven, 3000 Leuven, Belgium
| | - Julie Duque
- Institute of Neuroscience, Catholic University of Louvain, 1200 Brussels, Belgium
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Romagnolo A, Zibetti M, Lenzi M, Vighetti S, Pongmala C, Artusi CA, Montanaro E, Imbalzano G, Rizzone MG, Lopiano L. Low frequency subthalamic stimulation and event-related potentials in Parkinson disease. Parkinsonism Relat Disord 2020; 82:123-127. [PMID: 33321451 DOI: 10.1016/j.parkreldis.2020.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND High frequency (130 Hz) subthalamic Deep-Brain-Stimulation (STN-DBS) optimally improves cardinal motor symptoms in Parkinson disease (PD). Low stimulation frequencies (60-80 Hz) improve axial symptoms in some patients and, according to preliminary evidences, may also have a beneficial effect on the cognitive component of motor planning. OBJECTIVE To analyze the configuration of the P300 component of cortical event-related auditory potentials (ERPs), a reliable index of attentive cognitive functions, at different stimulation frequencies in STN-DBS in PD patients. METHODS 12 PD patients underwent ERPs recordings using a standard oddball auditory paradigm with STN-DBS at 60 Hz, 80 Hz, 130 Hz, and OFF-stimulation, applied in a randomized double-blind sequence. ERPs analysis considered the peak amplitude and latency of the P300 components at midline electrode positions (Fz, Cz, Pz). RESULTS P300 latency over Cz and Pz electrodes significantly increased with STN-DBS at 130 Hz compared to OFF-stimulation. P300 latency was also significantly increased, though to a lesser degree, over Pz electrode with stimulation at 80 Hz. No significant P300 latency modifications were detected at 60 Hz stimulation compared to OFF-stimulation condition. P300 amplitude did not change significantly for any of the stimulation conditions tested. CONCLUSIONS Low frequency STN-DBS is associated with minor modifications of P300 latency compared to conventional stimulation at 130 Hz, possibly suggesting that 60 and 80 Hz may have less interference with attentive and cognitive processes in PD patients.
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Affiliation(s)
- Alberto Romagnolo
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Maurizio Zibetti
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.
| | - Marco Lenzi
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Sergio Vighetti
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Chatkaew Pongmala
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Carlo Alberto Artusi
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Elisa Montanaro
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Gabriele Imbalzano
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Mario Giorgio Rizzone
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Leonardo Lopiano
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy
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Lio G, Thobois S, Ballanger B, Lau B, Boulinguez P. Removing deep brain stimulation artifacts from the electroencephalogram: Issues, recommendations and an open-source toolbox. Clin Neurophysiol 2018; 129:2170-2185. [PMID: 30144660 DOI: 10.1016/j.clinph.2018.07.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 07/23/2018] [Accepted: 07/28/2018] [Indexed: 12/30/2022]
Abstract
A major question for deep brain stimulation (DBS) research is understanding how DBS of one target area modulates activity in different parts of the brain. EEG gives privileged access to brain dynamics, but its use with implanted patients is limited since DBS adds significant high-amplitude electrical artifacts that can completely obscure neural activity measured using EEG. Here, we systematically review and discuss the methods available for removing DBS artifacts. These include simple techniques such as oversampling, antialiasing analog filtering and digital low-pass filtering, which are necessary but typically not sufficient to fully remove DBS artifacts when each is used in isolation. We also cover more advanced methods, including techniques tracking outliers in the frequency-domain, which can be effective, but are rarely used. The reason for that is twofold: First, it requires advanced skills in signal processing since no user friendly tool for removing DBS artifacts is currently available. Second, it involves fine-tuning to avoid over-aggressive filtering. We highlight an open-source toolbox incorporating most artifact removal methods, allowing users to combine different strategies.
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Affiliation(s)
- Guillaume Lio
- Université de Lyon, F-69622 Lyon, France; Université Lyon 1, Villeurbanne, France; CNRS, Centre de Neuroscience Cognitive, Bron, France
| | - Stéphane Thobois
- Université de Lyon, F-69622 Lyon, France; Université Lyon 1, Villeurbanne, France; CNRS, Centre de Neuroscience Cognitive, Bron, France; Hospices civils de Lyon, hôpital neurologique Pierre Wertheimer, Bron, France
| | - Bénédicte Ballanger
- Université de Lyon, F-69622 Lyon, France; Université Lyon 1, Villeurbanne, France; INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, Lyon, France
| | - Brian Lau
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, F-75013 Paris, France
| | - Philippe Boulinguez
- Université de Lyon, F-69622 Lyon, France; Université Lyon 1, Villeurbanne, France; INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, Lyon, France.
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Electroencephalographic read-outs of the modulation of cortical network activity by deep brain stimulation. Bioelectron Med 2018; 4:2. [PMID: 32232078 PMCID: PMC7098231 DOI: 10.1186/s42234-018-0003-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 02/15/2018] [Indexed: 12/24/2022] Open
Abstract
Deep brain stimulation (DBS), a reversible and adjustable treatment for neurological and psychiatric refractory disorders, consists in delivering electrical currents to neuronal populations located in subcortical structures. The targets of DBS are spatially restricted, but connect to many parts of the brain, including the cortex, which might explain the observed clinical benefits in terms of symptomatology. The DBS mechanisms of action at a large scale are however poorly understood, which has motivated several groups to recently conduct many research programs to monitor cortical responses to DBS. Here we review the knowledge gathered from the use of electroencephalography (EEG) in patients treated by DBS. We first focus on the methodology to record and process EEG signals concurrently to DBS. In the second part of the review, we address the clinical and scientific benefits brought by EEG/DBS studies so far.
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Camalier CR, Wang AY, McIntosh LG, Park S, Neimat JS. Subthalamic nucleus deep brain stimulation affects distractor interference in auditory working memory. Neuropsychologia 2017; 97:66-71. [PMID: 28174049 DOI: 10.1016/j.neuropsychologia.2017.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 01/26/2017] [Accepted: 02/03/2017] [Indexed: 01/28/2023]
Abstract
Computational and theoretical accounts hypothesize the basal ganglia play a supramodal "gating" role in the maintenance of working memory representations, especially in preservation from distractor interference. There are currently two major limitations to this account. The first is that supporting experiments have focused exclusively on the visuospatial domain, leaving questions as to whether such "gating" is domain-specific. The second is that current evidence relies on correlational measures, as it is extremely difficult to causally and reversibly manipulate subcortical structures in humans. To address these shortcomings, we examined non-spatial, auditory working memory performance during reversible modulation of the basal ganglia, an approach afforded by deep brain stimulation of the subthalamic nucleus. We found that subthalamic nucleus stimulation impaired auditory working memory performance, specifically in the group tested in the presence of distractors, even though the distractors were predictable and completely irrelevant to the encoding of the task stimuli. This study provides key causal evidence that the basal ganglia act as a supramodal filter in working memory processes, further adding to our growing understanding of their role in cognition.
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Affiliation(s)
- Corrie R Camalier
- Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Alice Y Wang
- Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Sohee Park
- Department of Psychology, Vanderbilt University, Nashville, TN, USA
| | - Joseph S Neimat
- Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, TN, USA
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Alhourani A, McDowell MM, Randazzo MJ, Wozny TA, Kondylis ED, Lipski WJ, Beck S, Karp JF, Ghuman AS, Richardson RM. Network effects of deep brain stimulation. J Neurophysiol 2015; 114:2105-17. [PMID: 26269552 DOI: 10.1152/jn.00275.2015] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 08/10/2015] [Indexed: 11/22/2022] Open
Abstract
The ability to differentially alter specific brain functions via deep brain stimulation (DBS) represents a monumental advance in clinical neuroscience, as well as within medicine as a whole. Despite the efficacy of DBS in the treatment of movement disorders, for which it is often the gold-standard therapy when medical management becomes inadequate, the mechanisms through which DBS in various brain targets produces therapeutic effects is still not well understood. This limited knowledge is a barrier to improving efficacy and reducing side effects in clinical brain stimulation. A field of study related to assessing the network effects of DBS is gradually emerging that promises to reveal aspects of the underlying pathophysiology of various brain disorders and their response to DBS that will be critical to advancing the field. This review summarizes the nascent literature related to network effects of DBS measured by cerebral blood flow and metabolic imaging, functional imaging, and electrophysiology (scalp and intracranial electroencephalography and magnetoencephalography) in order to establish a framework for future studies.
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Affiliation(s)
- Ahmad Alhourani
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael M McDowell
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael J Randazzo
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Thomas A Wozny
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Witold J Lipski
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sarah Beck
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jordan F Karp
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania; and
| | - Avniel S Ghuman
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania; Center for the Neural Basis of Cognition, Pittsburgh, Pennsylvania
| | - R Mark Richardson
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania; Center for the Neural Basis of Cognition, Pittsburgh, Pennsylvania
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Weismer G, Yunusova Y, Bunton K. Measures to Evaluate the Effects of DBS on Speech Production. JOURNAL OF NEUROLINGUISTICS 2012; 25:74-94. [PMID: 24932066 PMCID: PMC4056257 DOI: 10.1016/j.jneuroling.2011.08.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The purpose of this paper is to review and evaluate measures of speech production that could be used to document effects of Deep Brain Stimulation (DBS) on speech performance, especially in persons with Parkinson disease (PD). A small set of evaluative criteria for these measures is presented first, followed by consideration of several speech physiology and speech acoustic measures that have been studied frequently and reported on in the literature on normal speech production, and speech production affected by neuromotor disorders (dysarthria). Each measure is reviewed and evaluated against the evaluative criteria. Embedded within this review and evaluation is a presentation of new data relating speech motions to speech intelligibility measures in speakers with PD, amyotrophic lateral sclerosis (ALS), and control speakers (CS). These data are used to support the conclusion that at the present time the slope of second formant transitions (F2 slope), an acoustic measure, is well suited to make inferences to speech motion and to predict speech intelligibility. The use of other measures should not be ruled out, however, and we encourage further development of evaluative criteria for speech measures designed to probe the effects of DBS or any treatment with potential effects on speech production and communication skills.
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Affiliation(s)
- Gary Weismer
- Dept. Communicative Disorders, UW-Madison, Waisman Center, UW-Madison, Madison, WI USA
| | - Yana Yunusova
- Department of Speech-Language Pathology, University of Toronto, Toronto, Ontario, CANADA
| | - Kate Bunton
- Speech, Language, and Hearing Sciences, University of Arizona, Tucson, AZ USA
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Montgomery EB, Huang H, Walker HC, Guthrie BL, Watts RL. High-frequency deep brain stimulation of the putamen improves bradykinesia in Parkinson's disease. Mov Disord 2011; 26:2232-8. [PMID: 21714010 DOI: 10.1002/mds.23842] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 05/17/2011] [Accepted: 05/23/2011] [Indexed: 11/11/2022] Open
Abstract
Deep brain stimulation is effective for a wide range of neurological disorders; however, its mechanisms of action remain unclear. With respect to Parkinson's disease, the existence of multiple effective targets suggests that putamen stimulation also may be effective and raises questions as to the mechanisms of action. Are there as many mechanisms of action as there are effective targets or some single or small set of mechanisms common to all effective targets? During the course of routine surgery of the globus pallidus interna in patients with Parkinson's disease, the deep brain stimulation lead was placed in the putamen en route to the globus pallidus interna. Recordings of hand opening and closing during high-frequency and no stimulation were made. Speed of the movements, based on the amplitude and frequency of the repetitive hand movements as well as the decay in amplitude, were studied. Hand speed in 6 subjects was statistically significantly faster during active deep brain stimulation than the no-stimulation condition. There were no statistically significant differences in decay in the amplitude of hand movements. High-frequency deep brain stimulation of the putamen improves bradykinesia in a hand-opening and -closing task in patients with Parkinson's disease. Consequently, high-frequency deep brain stimulation of virtually every structure in the basal ganglia-thalamic-cortical system improves bradykinesia. These observations, together with microelectrode recordings reported in the literature, argue that deep brain stimulation effects may be system specific and not structure specific.
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Affiliation(s)
- Erwin B Montgomery
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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