Projets par an
Résumé
Many collective phenomena in Nature emerge from the -partial- synchronisation of the units comprising a system. In the case of the brain, this self-organised process allows groups of neurons to fire in highly intricate partially synchronised patterns and eventually lead to high level cognitive outputs and control over the human body. However, when the synchronisation patterns are altered and hypersynchronisation occurs, undesirable effects can occur. This is particularly striking and well documented in the case of epileptic seizures and tremors in neurodegenerative diseases such as Parkinson’s disease. In this paper, we propose an innovative, minimally invasive, control method that can effectively desynchronise misfiring brain regions and thus mitigate and even eliminate the symptoms of the diseases. The control strategy, grounded in the Hamiltonian control theory, is applied to ensembles of neurons modelled via the Kuramoto or the Stuart-Landau models and allows for heterogeneous coupling among the interacting unities. The theory has been complemented with dedicated numerical simulations performed using the small-world Newman-Watts network and the random Erdős-Rényi network. Finally the method has been compared with the gold-standard Proportional-Differential Feedback control technique. Our method is shown to achieve equivalent levels of desynchronisation using lesser control strength and/or fewer controllers, being thus minimally invasive.
langue originale | Anglais |
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Numéro d'article | e1006296 |
Nombre de pages | 18 |
journal | PLOS Computational Biology |
Volume | 14 |
Numéro de publication | 7 |
Les DOIs | |
Etat de la publication | Publié - 9 juil. 2018 |
Empreinte digitale
Examiner les sujets de recherche de « A minimally invasive neurostimulation method for controlling abnormal synchronisation in the neuronal activity ». Ensemble, ils forment une empreinte digitale unique.Projets
- 1 Terminé
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PAI n°P7/19 - DYSCO: Dynamical systems, control and optimization (DYSCO)
Winkin, J. (Co-investigateur), Blondel, V. (Responsable du Projet), Vandewalle, J. (Co-investigateur), Pintelon, R. M. (Co-investigateur), Sepulchre, R. (Co-investigateur), Vande Wouwer, A. (Co-investigateur) & Sartenaer, A. (Co-investigateur)
1/04/12 → 30/09/17
Projet: Recherche
Presse/médias
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From Quantum Mechanics To Brain Neurostimulation: Abnormal Synchronization Of Neuronal Activity
4/10/18
1 Contribution média
Presse/Médias: Commentaire d'expert