Universität zu Köln

Zeitler, Magteld ORCID: 0000-0001-6241-9921 and Tess, Peter A. (2015). Augmented brain function by coordinated reset stimulation with slowly varying sequences. Front. Syst. Neurosci., 9. LAUSANNE: FRONTIERS MEDIA SA. ISSN 1662-5137

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Abstract

Several brain disorders are characterized by abnormally strong neuronal synchrony. Coordinated Reset (CR) stimulation was developed to selectively counteract abnormal neuronal synchrony by desynchronization. For this, phase resetting stimuli are delivered to different subpopulations in a timely coordinated way. In neural networks with spike timing-dependent plasticity CR stimulation may eventually lead to an anti-kindling, i.e., an unlearning of abnormal synaptic connectivity and abnormal synchrony. The spatiotemporal sequence by which all stimulation sites are stimulated exactly once is called the stimulation site sequence, or briefly sequence. So far, in simulations, pre-clinical and clinical applications CR was applied either with fixed sequences or rapidly varying sequences (RVS). In this computational study we show that appropriate repetition of the sequence with occasional random switching to the next sequence may significantly improve the anti-kindling effect of CR. To this end, a sequence is applied many times before randomly switching to the next sequence. This new method is called SVS CR stimulation, i.e., CR with slowly varying sequences. In a neuronal network with strong short-range excitatory and weak long-range inhibitory dynamic couplings SVS CR stimulation turns out to be superior to CR stimulation with fixed sequences or RVS.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zeitler, Magteld UNSPECIFIED orcid.org/0000-0001-6241-9921 UNSPECIFIED Tess, Peter A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-409420
DOI:	10.3389/fnsys.2015.00049
Journal or Publication Title:	Front. Syst. Neurosci.
Volume:	9
Date:	2015
Publisher:	FRONTIERS MEDIA SA
Place of Publication:	LAUSANNE
ISSN:	1662-5137
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PARKINSONS-DISEASE; TINNITUS; MODEL; SYNCHRONY; NEUROMODULATION; CONNECTIVITY; NETWORKS; DYNAMICS; NEURONS; CELLS Multiple languages Neurosciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/40942