A Framework for Adapting Deep Brain Stimulation Using Parkinsonian State Estimates.

Abstract:

:The mechanisms underlying the beneficial effects of deep brain stimulation (DBS) for Parkinson's disease (PD) remain poorly understood and are still under debate. This has hindered the development of adaptive DBS (aDBS). For further progress in aDBS, more insight into the dynamics of PD is needed, which can be obtained using machine learning models. This study presents an approach that uses generative and discriminative machine learning models to more accurately estimate the symptom severity of patients and adjust therapy accordingly. A support vector machine is used as the representative algorithm for discriminative machine learning models, and the Gaussian mixture model is used for the generative models. Therapy is effected using the state estimates obtained from the machine learning models together with a fuzzy controller in a critic-actor control approach. Both machine learning model configurations achieve PD suppression to desired state in 7 out of 9 cases; most of which settle in under 2 s.

journal_name

Front Neurosci

authors

Mohammed A,Bayford R,Demosthenous A

doi

10.3389/fnins.2020.00499

subject

Has Abstract

pub_date

2020-05-19 00:00:00

pages

499

eissn

1662-4548

issn

1662-453X

journal_volume

14

pub_type

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