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Featured Publication

Electrocorticography is superior to subthalamic local field potentials for movement decoding in Parkinson’s disease

Timon Merk, Victoria Peterson, Witold J Lipski, Benjamin Blankertz, Robert S Turner, Ningfei Li, Andreas Horn, Robert Mark Richardson, Wolf-Julian Neumann (2022) Electrocorticography is superior to subthalamic local field potentials for movement decoding in Parkinson’s disease eLife 11:e75126

https://doi.org/10.7554/eLife.75126

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Interventional & Cognitive Neuromodulation

led by Wolf-Julian Neumann (Dr. med.)
part of the Movement Disorders Unit,
Department of Neurology,
Charité - Berlin, Germany

In our lab, we combine multimodal research methods including invasive human neurophysiology (local field potentials and electrocorticography), non-invasive neurophysiology (magneto-/electroencephalography), and structural and functional neuroimaging with access to 3T MRI in the department of neuroradiology.

Our projects explore how neural activity is synchronized across multiple nodes of the motor circuit.

We investigate how such activity is implicated in neurological disorders and how these findings can be translated into next-generation therapeutic neuromodulation approaches.

Key research points

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  Brain Oscillations 

 Functional relevance   of oscillatory activity  on cognitive and motor control 

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  Machine Learning  

based and real-time prediction of human behaviour from invasive recordings

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  Parkinson’s Disease   

Mechanisms of synaptic plasticity in the pathophysiology of the disease

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      Data Science     

Developing solutions for multimodal clinical neuroscience research data

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DATA WEEK GALLERY

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Research

RESEARCH

Clinical Neurophysiological Studies

 

Deep brain recordings on the patient

Our working group deals with the importance of oscillatory basal ganglia activity, which can be recorded intra- and perioperatively via DBS electrodes in patients with movement disorders. The aim of our work is the therapy optimization of deep brain stimulation, e.g. through adaptive closed-loop stimulation. To do this, we research disease-specific activity patterns and investigate the modulation of this activity by the therapy. Through motor and cognitive experiments, we work out the differential connection of the basal ganglia in motor and non-motor loops. The parallel recording of 125 channel magnetoencephalography or 64 channel electroencephalography offers the unique opportunity to Characterize cortico-subcortical connectivity in the cortex-basal ganglia loop. We assume that the modulation of disease-specific network activity is one of the mechanisms of action of DBS and can therefore serve as the key to better therapy using adaptive neuromodulation.


 

Sensor-based motion analysis

In order to display therapy effects independently of the examiner and in the highest possible resolution, we use various sensor systems for the quantitative recording of motor skills in case of movement disorders. This enables us to map and quantify subtle but relevant effects for the patient as well as undesirable side effects of deep brain stimulation and to optimize the therapy accordingly. Thanks to the large number of movement parameters that can be examined and the combination with imaging, electrode localization and the determination of the anatomical structures that are each achieved by the deep brain stimulation, we develop a better understanding of the basal ganglia function, which has resulted in a more targeted application of DBS for so far difficult to treat symptoms can follow.

From experiment to open metadata repository - OSF

Computational reproducibility for FAIR translational neuromodulation research in clinical neuroscience.

We are generally working on the characterization of biomarkers and the development of algorithms for invasive adaptive neurostimulation. Our research has immediate translational potential for therapy optimization. However, a lack of scientific transparency and reproducibility hinders the integration of promising innovations in everyday clinical practice. The SWTFTPF will help us develop a groundbreaking data strategy for multimodal neuromodulation research. The aim of this project is to provide automated data flow algorithms from data acquisition to computationally reproducible publication.

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Papers

Meet The Team

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Alessia Cavallo

MASTER STUDENT

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Thomas Samuel Binns

DOCTORAL ROTATION STUDENT

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Medical doctor and scientist working on deep brain stimulation for movement disorders.

Experienced in human electrophysiology recordings, including electrocorticography, DBS and behavioral measures.

Interested in open-source software development.

Visit my GitHub profile to check out some of my openly available projects.

Richard Köhler, MD

RESEARCH ASSOCIATE

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Mousa Mustafa

DOCTORAL ROTATION STUDENT

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Hakimeh Pourakbari

DOCTORAL STUDENT

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Clara Sofia Heil

MASTER STUDENT

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Elsa-Henriette Harms

MASTER STUDENT

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Ali Dzaye

DOCTORAL ROTATION
MEDICAL STUDENT

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Prarthita Sharma

MASTER STUDENT

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Maria Mikhailenko

DOCTORAL ROTATION STUDENT

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Martina Hysi

MASTER ROTATION STUDENT

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Laura Freire Lyra

MASTER ROTATION STUDENT

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Patricia Zvarova

MASTER ROTATION STUDENT

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Wolf-Julian Neumann,
MD, PhD

PRINCIPLE INVESTIGATOR

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DOCTORAL STUDENT

Jonathan Vanhoecke

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I am an interdisciplinary scientist with a passion for programming. I am trying to help other researchers with their data, in how to standardize and automatize data processing. How can we obtain a better reproducibility in neuroimaging? 

 

Other than the syntax in Python or Matlab, I love to study German, Spanish and other languages! 

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Meera Chikermane

DOCTORAL STUDENT

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DOCTORAL STUDENT

Timon Merk

Through my research I am trying to understand neurological disorders like Parkinson’s disease and how treatment could be more effective. How can Brain Computer Interfaces in Deep Brain Stimulation be used to inform about pathology as well as behavior? And how can advanced signal processing and Machine Learning methods be utilized for a better care?


Towards that, I am analyzing electrophysiological signals in terms of movement decoding as well as pathological biomarker characterization, to propose novel methods for adaptive Deep Brain Stimulation.

Team
Wolf-Julian Neumann - Invasive Brain Computer Interfaces for Parkinson's disease - BrainMeeting 2023
49:15

Wolf-Julian Neumann - Invasive Brain Computer Interfaces for Parkinson's disease - BrainMeeting 2023

Talk abstract: Dopamine and the basal ganglia have been conserved over 500 million years of evolution. They are fundamental to animal and human behaviour. Parkinson’s disease (PD) is associated with loss of dopaminergic innervation to the basal ganglia. Over six million people suffer from the debilitating symptoms of PD that span disturbance of emotion, cognition and movement. There is a pressing need to understand the pathogenesis of these symptoms, but an integrated account of dopamine and basal ganglia function is lacking. This constitutes a significant roadblock to scientific and therapeutic advances. Deep brain stimulation (DBS) is an emerging neurotechnological treatment for which electrodes are implanted directly into the depth of the patients’ brains and connected to an implantable pulse generator for chronic neurostimulation. In the past decades, DBS has shown clinical efficacy and provided unique access to invasive neurophysiology from the human basal ganglia. Nevertheless, the precise therapeutic mechanisms of DBS remain unknown. The leading hypothesis is that DBS can disrupt pathological brain circuit communication through local suppression and modulation of neural activity. In the present lecture, I will introduce how our centre uses DBS to develop a better understanding of the brain circuit computations of the basal ganglia and their alterations underlying PD symptoms. Next, I will highlight how a better understanding can directly inform machine learning models for the development of invasive brain computer interfaces that adapt to the individual challenges that PD patients are facing. To achieve this, we leverage the unprecedented spatiotemporal precision of closed-loop neurostimulation to reinstate physiological brain network activity in cortex - basal ganglia networks that are affected by dopaminergic neurodegeneration in PD. If successful, this could open new horizons for the interdisciplinary treatment of brain disorders affecting the dopaminergic system. Funding statement: WJN received funding from the European Union (ERC, ReinforceBG, project 101077060 ), Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID – TRR 295 and the Bundesministerium für Bildung und Forschung (BMBF, project FKZ01GQ1802). Twitter accounts to tag in promotional posts: @neumann_wj @ICNeuromodulate @Retune_CRC (https://sfb-retune.de/) Background of the speaker: Wolf-Julian Neumann is a clinician scientist (MD) at the Movement Disorders and Neuromodulation Unit at Charité Berlin with an expertise in movement disorders, neurophysiology and deep brain stimulation. The challenge his group, the @icneuromodulation174 group is currently working on is to try and integrate insights from PD pathophyisology, basal ganglia function, dopamine and neural reinforcement into a holistic cortex – basal ganglia – circuit model. I am actively engaging in programs and activities that aim to improve the scientific landscapes in terms of openness, reproducibility, diversity, equity and inclusiveness. I am severely hearing impaired.
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