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Automatic Sleep Stage Classification Based on Subthalamic Local Field Potentials.


ABSTRACT: Deep brain stimulation (DBS) is an established treatment for patients with Parkinson's disease (PD). Sleep disorders are common complications of PD and affected by subthalamic DBS treatment. To achieve more precise neuromodulation, chronicsleepmonitoringand closed-loop DBS toward sleep-wake cycles could potentially be utilized. Local field potential (LFP) signals that are sensed by the DBS electrode could be processed as primary feedback signals. This is the first study to systematically investigate the sleep-stage classification based on LFPs in subthalamic nucleus (STN). With our newly developed recording and transmission system, STN-LFPs were collected from 12 PD patients during wakefulness and nocturnal polysomnography sleep monitoring at one month after DBS implantation. Automatic sleep-stage classificationmodels were built with robust and interpretable machine learning methods (support vector machine and decision tree). The accuracy, sensitivity, selectivity, and specificity of the classification reached high values (above90% at most measures) at group and individual levels. Features extracted in alpha (8-13 Hz), beta (13-35 Hz), and gamma (35-50 Hz) bandswere found to contribute the most to the classification. These results will directly guide the engineering development of implantable sleepmonitoring and closed-loopDBS and pave the way for a better understanding of the STN-LFP sleep patterns.

SUBMITTER: Chen Y 

PROVIDER: S-EPMC6544463 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Automatic Sleep Stage Classification Based on Subthalamic Local Field Potentials.

Chen Yue Y   Gong Chen C   Hao Hongwei H   Guo Yi Y   Xu Shujun S   Zhang Yuhuan Y   Yin Guoping G   Cao Xin X   Yang Anchao A   Meng Fangang F   Ye Jingying J   Liu Hesheng H   Zhang Jianguo J   Sui Yanan Y   Li Luming L  

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society 20190101 2


Deep brain stimulation (DBS) is an established treatment for patients with Parkinson's disease (PD). Sleep disorders are common complications of PD and affected by subthalamic DBS treatment. To achieve more precise neuromodulation, chronicsleepmonitoringand closed-loop DBS toward sleep-wake cycles could potentially be utilized. Local field potential (LFP) signals that are sensed by the DBS electrode could be processed as primary feedback signals. This is the first study to systematically investi  ...[more]

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