Evidence map›Paper›PMID 32232686›Full record

ArticleJournal of mathematical neuroscience2020

Phase-dependence of response curves to deep brain stimulation and their relationship: from essential tremor patient data to a Wilson-Cowan model.

Benoit Duchet, Gihan Weerasinghe, Hayriye Cagnan, Peter Brown, Christian Bick, Rafal Bogacz

Abstract read
In one paragraph

Article in Journal of mathematical neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Benoit DuchetNuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK. benoit.duchet@ndcn.ox.ac.uk.
Gihan WeerasingheNuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK.
Hayriye CagnanNuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK.
Peter BrownNuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK.
Christian BickOxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford, UK.
Rafal BogaczNuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK.

Funding

Medical Research Council MC_UU_00003/1Medical Research Council MC_UU_00003/2Medical Research Council MC_UU_12024/1Medical Research Council MC_UU_12024/5Medical Research Council MR/R020418/1Medical Research Council (UK) MC_UU_12024/5
6 · The paper itself

Abstract

Essential tremor manifests predominantly as a tremor of the upper limbs. One therapy option is high-frequency deep brain stimulation, which continuously delivers electrical stimulation to the ventral intermediate nucleus of the thalamus at about 130 Hz. Constant stimulation can lead to side effects, it is therefore desirable to find ways to stimulate less while maintaining clinical efficacy. One strategy, phase-locked deep brain stimulation, consists of stimulating according to the phase of the tremor. To advance methods to optimise deep brain stimulation while providing insights into tremor circuits, we ask the question: can the effects of phase-locked stimulation be accounted for by a canonical Wilson-Cowan model? We first analyse patient data, and identify in half of the datasets significant dependence of the effects of stimulation on the phase at which stimulation is provided. The full nonlinear Wilson-Cowan model is fitted to datasets identified as statistically significant, and we show that in each case the model can fit to the dynamics of patient tremor as well as to the phase response curve. The vast majority of top fits are stable foci. The model provides satisfactory prediction of how patient tremor will react to phase-locked stimulation by predicting patient amplitude response curves although they were not explicitly fitted. We also approximate response curves of the significant datasets by providing analytical results for the linearisation of a stable focus model, a simplification of the Wilson-Cowan model in the stable focus regime. We report that the nonlinear Wilson-Cowan model is able to describe response to stimulation more precisely than the linearisation.

Indexed as

Amplitude response curveDeep brain stimulationEssential tremorFocus modelPhase-locked stimulationPhase response curveWilson Cowan model

Identifiers

PMID32232686
PMCPMC7105566

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.